Merge pull request #38854 from nextcloud/enh/llm-api

30 files changed, 1989 insertions, 1 deletions

diff --git a/core/Controller/TextProcessingApiController.php b/core/Controller/TextProcessingApiController.php
new file mode 100644
index 00000000000..9ed332644e1
--- /dev/null
+++ b/core/Controller/TextProcessingApiController.php
@@ -0,0 +1,137 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2023 Marcel Klehr <mklehr@gmx.net>
+ *
+ * @author Marcel Klehr <mklehr@gmx.net>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+namespace OC\Core\Controller;
+
+use InvalidArgumentException;
+use OCP\AppFramework\Http;
+use OCP\AppFramework\Http\DataResponse;
+use OCP\Common\Exception\NotFoundException;
+use OCP\IL10N;
+use OCP\IRequest;
+use OCP\TextProcessing\ITaskType;
+use OCP\TextProcessing\Task;
+use OCP\TextProcessing\IManager;
+use OCP\PreConditionNotMetException;
+use Psr\Container\ContainerExceptionInterface;
+use Psr\Container\ContainerInterface;
+use Psr\Container\NotFoundExceptionInterface;
+use Psr\Log\LoggerInterface;
+
+class TextProcessingApiController extends \OCP\AppFramework\OCSController {
+	public function __construct(
+		string           $appName,
+		IRequest         $request,
+		private IManager $languageModelManager,
+		private IL10N    $l,
+		private ?string  $userId,
+		private ContainerInterface $container,
+		private LoggerInterface $logger,
+	) {
+		parent::__construct($appName, $request);
+	}
+
+	/**
+	 * This endpoint returns all available LanguageModel task types
+	 *
+	 * @PublicPage
+	 */
+	public function taskTypes(): DataResponse {
+		$typeClasses = $this->languageModelManager->getAvailableTaskTypes();
+		$types = [];
+		foreach ($typeClasses as $typeClass) {
+			try {
+				/** @var ITaskType $object */
+				$object = $this->container->get($typeClass);
+			} catch (NotFoundExceptionInterface|ContainerExceptionInterface $e) {
+				$this->logger->warning('Could not find ' . $typeClass, ['exception' => $e]);
+				continue;
+			}
+			$types[] = [
+				'id' => $typeClass,
+				'name' => $object->getName(),
+				'description' => $object->getDescription(),
+			];
+		}
+
+		return new DataResponse([
+			'types' => $types,
+		]);
+	}
+
+	/**
+	 * This endpoint allows scheduling a language model task
+	 *
+	 * @PublicPage
+	 * @UserRateThrottle(limit=20, period=120)
+	 * @AnonRateThrottle(limit=5, period=120)
+	 */
+	public function schedule(string $input, string $type, string $appId, string $identifier = ''): DataResponse {
+		try {
+			$task = new Task($type, $input, $appId, $this->userId, $identifier);
+		} catch (InvalidArgumentException) {
+			return new DataResponse(['message' => $this->l->t('Requested task type does not exist')], Http::STATUS_BAD_REQUEST);
+		}
+		try {
+			$this->languageModelManager->scheduleTask($task);
+
+			$json = $task->jsonSerialize();
+
+			return new DataResponse([
+				'task' => $json,
+			]);
+		} catch (PreConditionNotMetException) {
+			return new DataResponse(['message' => $this->l->t('Necessary language model provider is not available')], Http::STATUS_PRECONDITION_FAILED);
+		}
+	}
+
+	/**
+	 * This endpoint allows checking the status and results of a task.
+	 * Tasks are removed 1 week after receiving their last update.
+	 *
+	 * @PublicPage
+	 * @param int $id The id of the task
+	 */
+	public function getTask(int $id): DataResponse {
+		try {
+			$task = $this->languageModelManager->getTask($id);
+
+			if ($this->userId !== $task->getUserId()) {
+				return new DataResponse(['message' => $this->l->t('Task not found')], Http::STATUS_NOT_FOUND);
+			}
+
+			$json = $task->jsonSerialize();
+
+			return new DataResponse([
+				'task' => $json,
+			]);
+		} catch (NotFoundException $e) {
+			return new DataResponse(['message' => $this->l->t('Task not found')], Http::STATUS_NOT_FOUND);
+		} catch (\RuntimeException $e) {
+			return new DataResponse(['message' => $this->l->t('Internal error')], Http::STATUS_INTERNAL_SERVER_ERROR);
+		}
+	}
+}
diff --git a/core/Migrations/Version28000Date20230616104802.php b/core/Migrations/Version28000Date20230616104802.php
new file mode 100644
index 00000000000..a4520b3c5bc
--- /dev/null
+++ b/core/Migrations/Version28000Date20230616104802.php
@@ -0,0 +1,102 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2023 Marcel Klehr <mklehr@gmx.net>
+ *
+ * @author Marcel Klehr <mklehr@gmx.net>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OC\Core\Migrations;
+
+use Closure;
+use OCP\DB\ISchemaWrapper;
+use OCP\DB\Types;
+use OCP\Migration\IOutput;
+use OCP\Migration\SimpleMigrationStep;
+
+/**
+ * Introduce llm_tasks table
+ */
+class Version28000Date20230616104802 extends SimpleMigrationStep {
+	/**
+	 * @param IOutput $output
+	 * @param Closure $schemaClosure The `\Closure` returns a `ISchemaWrapper`
+	 * @param array $options
+	 * @return null|ISchemaWrapper
+	 */
+	public function changeSchema(IOutput $output, Closure $schemaClosure, array $options): ?ISchemaWrapper {
+		/** @var ISchemaWrapper $schema */
+		$schema = $schemaClosure();
+
+		if (!$schema->hasTable('llm_tasks')) {
+			$table = $schema->createTable('llm_tasks');
+
+			$table->addColumn('id', Types::BIGINT, [
+				'notnull' => true,
+				'length' => 64,
+				'autoincrement' => true,
+			]);
+			$table->addColumn('type', Types::STRING, [
+				'notnull' => true,
+				'length' => 255,
+			]);
+			$table->addColumn('input', Types::TEXT, [
+				'notnull' => true,
+			]);
+			$table->addColumn('output', Types::TEXT, [
+				'notnull' => false,
+			]);
+			$table->addColumn('status', Types::INTEGER, [
+				'notnull' => false,
+				'length' => 6,
+				'default' => 0,
+			]);
+			$table->addColumn('user_id', Types::STRING, [
+				'notnull' => true,
+				'length' => 64,
+			]);
+			$table->addColumn('app_id', Types::STRING, [
+				'notnull' => true,
+				'length' => 32,
+				'default' => '',
+			]);
+			$table->addColumn('identifier', Types::STRING, [
+				'notnull' => true,
+				'length' => 255,
+				'default' => '',
+			]);
+			$table->addColumn('last_updated', 'integer', [
+				'notnull' => false,
+				'length' => 4,
+				'default' => 0,
+				'unsigned' => true,
+			]);
+
+			$table->setPrimaryKey(['id'], 'llm_tasks_id_index');
+			$table->addUniqueIndex(['status', 'type'], 'llm_tasks_status_type');
+			$table->addIndex(['last_updated'], 'llm_tasks_updated');
+
+			return $schema;
+		}
+
+		return null;
+	}
+}
diff --git a/core/routes.php b/core/routes.php
index 0f9729e54eb..4790f32af32 100644
--- a/core/routes.php
+++ b/core/routes.php
@@ -145,6 +145,10 @@ $application->registerRoutes($this, [
 
 		['root' => '/translation', 'name' => 'TranslationApi#languages', 'url' => '/languages', 'verb' => 'GET'],
 		['root' => '/translation', 'name' => 'TranslationApi#translate', 'url' => '/translate', 'verb' => 'POST'],
+
+		['root' => '/textprocessing', 'name' => 'TextProcessingApi#taskTypes', 'url' => '/tasktypes', 'verb' => 'GET'],
+		['root' => '/textprocessing', 'name' => 'TextProcessingApi#schedule', 'url' => '/schedule', 'verb' => 'POST'],
+		['root' => '/textprocessing', 'name' => 'TextProcessingApi#getTask', 'url' => '/task/{id}', 'verb' => 'GET'],
 	],
 ]);
 
diff --git a/lib/composer/composer/autoload_classmap.php b/lib/composer/composer/autoload_classmap.php
index 25c402b3084..fcd1020be10 100644
--- a/lib/composer/composer/autoload_classmap.php
+++ b/lib/composer/composer/autoload_classmap.php
@@ -197,6 +197,7 @@ return array(
     'OCP\\Comments\\IllegalIDChangeException' => $baseDir . '/lib/public/Comments/IllegalIDChangeException.php',
     'OCP\\Comments\\MessageTooLongException' => $baseDir . '/lib/public/Comments/MessageTooLongException.php',
     'OCP\\Comments\\NotFoundException' => $baseDir . '/lib/public/Comments/NotFoundException.php',
+    'OCP\\Common\\Exception\\NotFoundException' => $baseDir . '/lib/public/Common/Exception/NotFoundException.php',
     'OCP\\Config\\BeforePreferenceDeletedEvent' => $baseDir . '/lib/public/Config/BeforePreferenceDeletedEvent.php',
     'OCP\\Config\\BeforePreferenceSetEvent' => $baseDir . '/lib/public/Config/BeforePreferenceSetEvent.php',
     'OCP\\Console\\ConsoleEvent' => $baseDir . '/lib/public/Console/ConsoleEvent.php',
@@ -626,6 +627,17 @@ return array(
     'OCP\\Talk\\IConversationOptions' => $baseDir . '/lib/public/Talk/IConversationOptions.php',
     'OCP\\Talk\\ITalkBackend' => $baseDir . '/lib/public/Talk/ITalkBackend.php',
     'OCP\\Template' => $baseDir . '/lib/public/Template.php',
+    'OCP\\TextProcessing\\Events\\AbstractTextProcessingEvent' => $baseDir . '/lib/public/TextProcessing/Events/AbstractTextProcessingEvent.php',
+    'OCP\\TextProcessing\\Events\\TaskFailedEvent' => $baseDir . '/lib/public/TextProcessing/Events/TaskFailedEvent.php',
+    'OCP\\TextProcessing\\Events\\TaskSuccessfulEvent' => $baseDir . '/lib/public/TextProcessing/Events/TaskSuccessfulEvent.php',
+    'OCP\\TextProcessing\\FreePromptTaskType' => $baseDir . '/lib/public/TextProcessing/FreePromptTaskType.php',
+    'OCP\\TextProcessing\\HeadlineTaskType' => $baseDir . '/lib/public/TextProcessing/HeadlineTaskType.php',
+    'OCP\\TextProcessing\\IManager' => $baseDir . '/lib/public/TextProcessing/IManager.php',
+    'OCP\\TextProcessing\\IProvider' => $baseDir . '/lib/public/TextProcessing/IProvider.php',
+    'OCP\\TextProcessing\\ITaskType' => $baseDir . '/lib/public/TextProcessing/ITaskType.php',
+    'OCP\\TextProcessing\\SummaryTaskType' => $baseDir . '/lib/public/TextProcessing/SummaryTaskType.php',
+    'OCP\\TextProcessing\\Task' => $baseDir . '/lib/public/TextProcessing/Task.php',
+    'OCP\\TextProcessing\\TopicsTaskType' => $baseDir . '/lib/public/TextProcessing/TopicsTaskType.php',
     'OCP\\Translation\\CouldNotTranslateException' => $baseDir . '/lib/public/Translation/CouldNotTranslateException.php',
     'OCP\\Translation\\IDetectLanguageProvider' => $baseDir . '/lib/public/Translation/IDetectLanguageProvider.php',
     'OCP\\Translation\\ITranslationManager' => $baseDir . '/lib/public/Translation/ITranslationManager.php',
@@ -1049,6 +1061,7 @@ return array(
     'OC\\Core\\Controller\\ReferenceController' => $baseDir . '/core/Controller/ReferenceController.php',
     'OC\\Core\\Controller\\SearchController' => $baseDir . '/core/Controller/SearchController.php',
     'OC\\Core\\Controller\\SetupController' => $baseDir . '/core/Controller/SetupController.php',
+    'OC\\Core\\Controller\\TextProcessingApiController' => $baseDir . '/core/Controller/TextProcessingApiController.php',
     'OC\\Core\\Controller\\TranslationApiController' => $baseDir . '/core/Controller/TranslationApiController.php',
     'OC\\Core\\Controller\\TwoFactorChallengeController' => $baseDir . '/core/Controller/TwoFactorChallengeController.php',
     'OC\\Core\\Controller\\UnifiedSearchController' => $baseDir . '/core/Controller/UnifiedSearchController.php',
@@ -1127,6 +1140,7 @@ return array(
     'OC\\Core\\Migrations\\Version27000Date20220613163520' => $baseDir . '/core/Migrations/Version27000Date20220613163520.php',
     'OC\\Core\\Migrations\\Version27000Date20230309104325' => $baseDir . '/core/Migrations/Version27000Date20230309104325.php',
     'OC\\Core\\Migrations\\Version27000Date20230309104802' => $baseDir . '/core/Migrations/Version27000Date20230309104802.php',
+    'OC\\Core\\Migrations\\Version28000Date20230616104802' => $baseDir . '/core/Migrations/Version28000Date20230616104802.php',
     'OC\\Core\\Notification\\CoreNotifier' => $baseDir . '/core/Notification/CoreNotifier.php',
     'OC\\Core\\Service\\LoginFlowV2Service' => $baseDir . '/core/Service/LoginFlowV2Service.php',
     'OC\\DB\\Adapter' => $baseDir . '/lib/private/DB/Adapter.php',
@@ -1500,6 +1514,7 @@ return array(
     'OC\\RepairException' => $baseDir . '/lib/private/RepairException.php',
     'OC\\Repair\\AddBruteForceCleanupJob' => $baseDir . '/lib/private/Repair/AddBruteForceCleanupJob.php',
     'OC\\Repair\\AddCleanupUpdaterBackupsJob' => $baseDir . '/lib/private/Repair/AddCleanupUpdaterBackupsJob.php',
+    'OC\\Repair\\AddRemoveOldTasksBackgroundJob' => $baseDir . '/lib/private/Repair/AddRemoveOldTasksBackgroundJob.php',
     'OC\\Repair\\CleanTags' => $baseDir . '/lib/private/Repair/CleanTags.php',
     'OC\\Repair\\CleanUpAbandonedApps' => $baseDir . '/lib/private/Repair/CleanUpAbandonedApps.php',
     'OC\\Repair\\ClearFrontendCaches' => $baseDir . '/lib/private/Repair/ClearFrontendCaches.php',
@@ -1651,6 +1666,11 @@ return array(
     'OC\\Template\\ResourceLocator' => $baseDir . '/lib/private/Template/ResourceLocator.php',
     'OC\\Template\\ResourceNotFoundException' => $baseDir . '/lib/private/Template/ResourceNotFoundException.php',
     'OC\\Template\\TemplateFileLocator' => $baseDir . '/lib/private/Template/TemplateFileLocator.php',
+    'OC\\TextProcessing\\Db\\Task' => $baseDir . '/lib/private/TextProcessing/Db/Task.php',
+    'OC\\TextProcessing\\Db\\TaskMapper' => $baseDir . '/lib/private/TextProcessing/Db/TaskMapper.php',
+    'OC\\TextProcessing\\Manager' => $baseDir . '/lib/private/TextProcessing/Manager.php',
+    'OC\\TextProcessing\\RemoveOldTasksBackgroundJob' => $baseDir . '/lib/private/TextProcessing/RemoveOldTasksBackgroundJob.php',
+    'OC\\TextProcessing\\TaskBackgroundJob' => $baseDir . '/lib/private/TextProcessing/TaskBackgroundJob.php',
     'OC\\Translation\\TranslationManager' => $baseDir . '/lib/private/Translation/TranslationManager.php',
     'OC\\URLGenerator' => $baseDir . '/lib/private/URLGenerator.php',
     'OC\\Updater' => $baseDir . '/lib/private/Updater.php',
diff --git a/lib/composer/composer/autoload_static.php b/lib/composer/composer/autoload_static.php
index cb1ae9e537b..783e63550c0 100644
--- a/lib/composer/composer/autoload_static.php
+++ b/lib/composer/composer/autoload_static.php
@@ -230,6 +230,7 @@ class ComposerStaticInit749170dad3f5e7f9ca158f5a9f04f6a2
         'OCP\\Comments\\IllegalIDChangeException' => __DIR__ . '/../../..' . '/lib/public/Comments/IllegalIDChangeException.php',
         'OCP\\Comments\\MessageTooLongException' => __DIR__ . '/../../..' . '/lib/public/Comments/MessageTooLongException.php',
         'OCP\\Comments\\NotFoundException' => __DIR__ . '/../../..' . '/lib/public/Comments/NotFoundException.php',
+        'OCP\\Common\\Exception\\NotFoundException' => __DIR__ . '/../../..' . '/lib/public/Common/Exception/NotFoundException.php',
         'OCP\\Config\\BeforePreferenceDeletedEvent' => __DIR__ . '/../../..' . '/lib/public/Config/BeforePreferenceDeletedEvent.php',
         'OCP\\Config\\BeforePreferenceSetEvent' => __DIR__ . '/../../..' . '/lib/public/Config/BeforePreferenceSetEvent.php',
         'OCP\\Console\\ConsoleEvent' => __DIR__ . '/../../..' . '/lib/public/Console/ConsoleEvent.php',
@@ -659,6 +660,17 @@ class ComposerStaticInit749170dad3f5e7f9ca158f5a9f04f6a2
         'OCP\\Talk\\IConversationOptions' => __DIR__ . '/../../..' . '/lib/public/Talk/IConversationOptions.php',
         'OCP\\Talk\\ITalkBackend' => __DIR__ . '/../../..' . '/lib/public/Talk/ITalkBackend.php',
         'OCP\\Template' => __DIR__ . '/../../..' . '/lib/public/Template.php',
+        'OCP\\TextProcessing\\Events\\AbstractTextProcessingEvent' => __DIR__ . '/../../..' . '/lib/public/TextProcessing/Events/AbstractTextProcessingEvent.php',
+        'OCP\\TextProcessing\\Events\\TaskFailedEvent' => __DIR__ . '/../../..' . '/lib/public/TextProcessing/Events/TaskFailedEvent.php',
+        'OCP\\TextProcessing\\Events\\TaskSuccessfulEvent' => __DIR__ . '/../../..' . '/lib/public/TextProcessing/Events/TaskSuccessfulEvent.php',
+        'OCP\\TextProcessing\\FreePromptTaskType' => __DIR__ . '/../../..' . '/lib/public/TextProcessing/FreePromptTaskType.php',
+        'OCP\\TextProcessing\\HeadlineTaskType' => __DIR__ . '/../../..' . '/lib/public/TextProcessing/HeadlineTaskType.php',
+        'OCP\\TextProcessing\\IManager' => __DIR__ . '/../../..' . '/lib/public/TextProcessing/IManager.php',
+        'OCP\\TextProcessing\\IProvider' => __DIR__ . '/../../..' . '/lib/public/TextProcessing/IProvider.php',
+        'OCP\\TextProcessing\\ITaskType' => __DIR__ . '/../../..' . '/lib/public/TextProcessing/ITaskType.php',
+        'OCP\\TextProcessing\\SummaryTaskType' => __DIR__ . '/../../..' . '/lib/public/TextProcessing/SummaryTaskType.php',
+        'OCP\\TextProcessing\\Task' => __DIR__ . '/../../..' . '/lib/public/TextProcessing/Task.php',
+        'OCP\\TextProcessing\\TopicsTaskType' => __DIR__ . '/../../..' . '/lib/public/TextProcessing/TopicsTaskType.php',
         'OCP\\Translation\\CouldNotTranslateException' => __DIR__ . '/../../..' . '/lib/public/Translation/CouldNotTranslateException.php',
         'OCP\\Translation\\IDetectLanguageProvider' => __DIR__ . '/../../..' . '/lib/public/Translation/IDetectLanguageProvider.php',
         'OCP\\Translation\\ITranslationManager' => __DIR__ . '/../../..' . '/lib/public/Translation/ITranslationManager.php',
@@ -1082,6 +1094,7 @@ class ComposerStaticInit749170dad3f5e7f9ca158f5a9f04f6a2
         'OC\\Core\\Controller\\ReferenceController' => __DIR__ . '/../../..' . '/core/Controller/ReferenceController.php',
         'OC\\Core\\Controller\\SearchController' => __DIR__ . '/../../..' . '/core/Controller/SearchController.php',
         'OC\\Core\\Controller\\SetupController' => __DIR__ . '/../../..' . '/core/Controller/SetupController.php',
+        'OC\\Core\\Controller\\TextProcessingApiController' => __DIR__ . '/../../..' . '/core/Controller/TextProcessingApiController.php',
         'OC\\Core\\Controller\\TranslationApiController' => __DIR__ . '/../../..' . '/core/Controller/TranslationApiController.php',
         'OC\\Core\\Controller\\TwoFactorChallengeController' => __DIR__ . '/../../..' . '/core/Controller/TwoFactorChallengeController.php',
         'OC\\Core\\Controller\\UnifiedSearchController' => __DIR__ . '/../../..' . '/core/Controller/UnifiedSearchController.php',
@@ -1160,6 +1173,7 @@ class ComposerStaticInit749170dad3f5e7f9ca158f5a9f04f6a2
         'OC\\Core\\Migrations\\Version27000Date20220613163520' => __DIR__ . '/../../..' . '/core/Migrations/Version27000Date20220613163520.php',
         'OC\\Core\\Migrations\\Version27000Date20230309104325' => __DIR__ . '/../../..' . '/core/Migrations/Version27000Date20230309104325.php',
         'OC\\Core\\Migrations\\Version27000Date20230309104802' => __DIR__ . '/../../..' . '/core/Migrations/Version27000Date20230309104802.php',
+        'OC\\Core\\Migrations\\Version28000Date20230616104802' => __DIR__ . '/../../..' . '/core/Migrations/Version28000Date20230616104802.php',
         'OC\\Core\\Notification\\CoreNotifier' => __DIR__ . '/../../..' . '/core/Notification/CoreNotifier.php',
         'OC\\Core\\Service\\LoginFlowV2Service' => __DIR__ . '/../../..' . '/core/Service/LoginFlowV2Service.php',
         'OC\\DB\\Adapter' => __DIR__ . '/../../..' . '/lib/private/DB/Adapter.php',
@@ -1533,6 +1547,7 @@ class ComposerStaticInit749170dad3f5e7f9ca158f5a9f04f6a2
         'OC\\RepairException' => __DIR__ . '/../../..' . '/lib/private/RepairException.php',
         'OC\\Repair\\AddBruteForceCleanupJob' => __DIR__ . '/../../..' . '/lib/private/Repair/AddBruteForceCleanupJob.php',
         'OC\\Repair\\AddCleanupUpdaterBackupsJob' => __DIR__ . '/../../..' . '/lib/private/Repair/AddCleanupUpdaterBackupsJob.php',
+        'OC\\Repair\\AddRemoveOldTasksBackgroundJob' => __DIR__ . '/../../..' . '/lib/private/Repair/AddRemoveOldTasksBackgroundJob.php',
         'OC\\Repair\\CleanTags' => __DIR__ . '/../../..' . '/lib/private/Repair/CleanTags.php',
         'OC\\Repair\\CleanUpAbandonedApps' => __DIR__ . '/../../..' . '/lib/private/Repair/CleanUpAbandonedApps.php',
         'OC\\Repair\\ClearFrontendCaches' => __DIR__ . '/../../..' . '/lib/private/Repair/ClearFrontendCaches.php',
@@ -1684,6 +1699,11 @@ class ComposerStaticInit749170dad3f5e7f9ca158f5a9f04f6a2
         'OC\\Template\\ResourceLocator' => __DIR__ . '/../../..' . '/lib/private/Template/ResourceLocator.php',
         'OC\\Template\\ResourceNotFoundException' => __DIR__ . '/../../..' . '/lib/private/Template/ResourceNotFoundException.php',
         'OC\\Template\\TemplateFileLocator' => __DIR__ . '/../../..' . '/lib/private/Template/TemplateFileLocator.php',
+        'OC\\TextProcessing\\Db\\Task' => __DIR__ . '/../../..' . '/lib/private/TextProcessing/Db/Task.php',
+        'OC\\TextProcessing\\Db\\TaskMapper' => __DIR__ . '/../../..' . '/lib/private/TextProcessing/Db/TaskMapper.php',
+        'OC\\TextProcessing\\Manager' => __DIR__ . '/../../..' . '/lib/private/TextProcessing/Manager.php',
+        'OC\\TextProcessing\\RemoveOldTasksBackgroundJob' => __DIR__ . '/../../..' . '/lib/private/TextProcessing/RemoveOldTasksBackgroundJob.php',
+        'OC\\TextProcessing\\TaskBackgroundJob' => __DIR__ . '/../../..' . '/lib/private/TextProcessing/TaskBackgroundJob.php',
         'OC\\Translation\\TranslationManager' => __DIR__ . '/../../..' . '/lib/private/Translation/TranslationManager.php',
         'OC\\URLGenerator' => __DIR__ . '/../../..' . '/lib/private/URLGenerator.php',
         'OC\\Updater' => __DIR__ . '/../../..' . '/lib/private/Updater.php',
diff --git a/lib/private/AppFramework/Bootstrap/RegistrationContext.php b/lib/private/AppFramework/Bootstrap/RegistrationContext.php
index 8fcafab2d87..5aea2a7a744 100644
--- a/lib/private/AppFramework/Bootstrap/RegistrationContext.php
+++ b/lib/private/AppFramework/Bootstrap/RegistrationContext.php
@@ -33,6 +33,7 @@ use Closure;
 use OCP\Calendar\Resource\IBackend as IResourceBackend;
 use OCP\Calendar\Room\IBackend as IRoomBackend;
 use OCP\Collaboration\Reference\IReferenceProvider;
+use OCP\TextProcessing\IProvider as ITextProcessingProvider;
 use OCP\SpeechToText\ISpeechToTextProvider;
 use OCP\Talk\ITalkBackend;
 use OCP\Translation\ITranslationProvider;
@@ -115,6 +116,9 @@ class RegistrationContext {
 	/** @var ServiceRegistration<ISpeechToTextProvider>[] */
 	private $speechToTextProviders = [];
 
+	/** @var ServiceRegistration<ITextProcessingProvider>[] */
+	private $textProcessingProviders = [];
+
 	/** @var ServiceRegistration<ICustomTemplateProvider>[] */
 	private $templateProviders = [];
 
@@ -262,6 +266,12 @@ class RegistrationContext {
 					$providerClass
 				);
 			}
+			public function registerTextProcessingProvider(string $providerClass): void {
+				$this->context->registerTextProcessingProvider(
+					$this->appId,
+					$providerClass
+				);
+			}
 
 			public function registerTemplateProvider(string $providerClass): void {
 				$this->context->registerTemplateProvider(
@@ -429,6 +439,10 @@ class RegistrationContext {
 		$this->speechToTextProviders[] = new ServiceRegistration($appId, $class);
 	}
 
+	public function registerTextProcessingProvider(string $appId, string $class): void {
+		$this->textProcessingProviders[] = new ServiceRegistration($appId, $class);
+	}
+
 	public function registerTemplateProvider(string $appId, string $class): void {
 		$this->templateProviders[] = new ServiceRegistration($appId, $class);
 	}
@@ -708,6 +722,13 @@ class RegistrationContext {
 	}
 
 	/**
+	 * @return ServiceRegistration<ITextProcessingProvider>[]
+	 */
+	public function getTextProcessingProviders(): array {
+		return $this->textProcessingProviders;
+	}
+
+	/**
 	 * @return ServiceRegistration<ICustomTemplateProvider>[]
 	 */
 	public function getTemplateProviders(): array {
diff --git a/lib/private/Repair.php b/lib/private/Repair.php
index 9c6a6cd00f2..05624a2423a 100644
--- a/lib/private/Repair.php
+++ b/lib/private/Repair.php
@@ -34,6 +34,7 @@
  */
 namespace OC;
 
+use OC\Repair\AddRemoveOldTasksBackgroundJob;
 use OC\Repair\CleanUpAbandonedApps;
 use OCP\AppFramework\QueryException;
 use OCP\AppFramework\Utility\ITimeFactory;
@@ -210,6 +211,7 @@ class Repair implements IOutput {
 			\OCP\Server::get(AddTokenCleanupJob::class),
 			\OCP\Server::get(CleanUpAbandonedApps::class),
 			\OCP\Server::get(AddMissingSecretJob::class),
+			\OCP\Server::get(AddRemoveOldTasksBackgroundJob::class),
 		];
 	}
 
diff --git a/lib/private/Repair/AddRemoveOldTasksBackgroundJob.php b/lib/private/Repair/AddRemoveOldTasksBackgroundJob.php
new file mode 100644
index 00000000000..94ae39f2183
--- /dev/null
+++ b/lib/private/Repair/AddRemoveOldTasksBackgroundJob.php
@@ -0,0 +1,47 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright 2023 Marcel Klehr <mklehr@gmx.net>
+ *
+ * @author Marcel Klehr <mklehr@gmx.net>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+namespace OC\Repair;
+
+use OC\TextProcessing\RemoveOldTasksBackgroundJob;
+use OCP\BackgroundJob\IJobList;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+
+class AddRemoveOldTasksBackgroundJob implements IRepairStep {
+	private IJobList $jobList;
+
+	public function __construct(IJobList $jobList) {
+		$this->jobList = $jobList;
+	}
+
+	public function getName(): string {
+		return 'Add language model tasks cleanup job';
+	}
+
+	public function run(IOutput $output) {
+		$this->jobList->add(RemoveOldTasksBackgroundJob::class);
+	}
+}
diff --git a/lib/private/Server.php b/lib/private/Server.php
index f98ee051a32..03c03e1b6ed 100644
--- a/lib/private/Server.php
+++ b/lib/private/Server.php
@@ -1470,6 +1470,8 @@ class Server extends ServerContainer implements IServerContainer {
 
 		$this->registerAlias(IEventSourceFactory::class, EventSourceFactory::class);
 
+		$this->registerAlias(\OCP\TextProcessing\IManager::class, \OC\TextProcessing\Manager::class);
+
 		$this->connectDispatcher();
 	}
 
diff --git a/lib/private/Setup.php b/lib/private/Setup.php
index d847125cc79..0993fe54f47 100644
--- a/lib/private/Setup.php
+++ b/lib/private/Setup.php
@@ -53,6 +53,7 @@ use Exception;
 use InvalidArgumentException;
 use OC\Authentication\Token\PublicKeyTokenProvider;
 use OC\Authentication\Token\TokenCleanupJob;
+use OC\TextProcessing\RemoveOldTasksBackgroundJob;
 use OC\Log\Rotate;
 use OC\Preview\BackgroundCleanupJob;
 use OCP\AppFramework\Utility\ITimeFactory;
@@ -453,6 +454,7 @@ class Setup {
 		$jobList->add(TokenCleanupJob::class);
 		$jobList->add(Rotate::class);
 		$jobList->add(BackgroundCleanupJob::class);
+		$jobList->add(RemoveOldTasksBackgroundJob::class);
 	}
 
 	/**
diff --git a/lib/private/TextProcessing/Db/Task.php b/lib/private/TextProcessing/Db/Task.php
new file mode 100644
index 00000000000..8c2ddb74f1f
--- /dev/null
+++ b/lib/private/TextProcessing/Db/Task.php
@@ -0,0 +1,112 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2023 Marcel Klehr <mklehr@gmx.net>
+ *
+ * @author Marcel Klehr <mklehr@gmx.net>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+namespace OC\TextProcessing\Db;
+
+use OCP\AppFramework\Db\Entity;
+use OCP\TextProcessing\Task as OCPTask;
+
+/**
+ * @method setType(string $type)
+ * @method string getType()
+ * @method setLastUpdated(int $lastUpdated)
+ * @method int getLastUpdated()
+ * @method setInput(string $type)
+ * @method string getInput()
+ * @method setOutput(string $type)
+ * @method string getOutput()
+ * @method setStatus(int $type)
+ * @method int getStatus()
+ * @method setUserId(string $type)
+ * @method string getuserId()
+ * @method setAppId(string $type)
+ * @method string getAppId()
+ * @method setIdentifier(string $type)
+ * @method string getIdentifier()
+ */
+class Task extends Entity {
+	protected $lastUpdated;
+	protected $type;
+	protected $input;
+	protected $output;
+	protected $status;
+	protected $userId;
+	protected $appId;
+	protected $identifier;
+
+	/**
+	 * @var string[]
+	 */
+	public static array $columns = ['id', 'last_updated', 'type', 'input', 'output', 'status', 'user_id', 'app_id', 'identifier'];
+
+	/**
+	 * @var string[]
+	 */
+	public static array $fields = ['id', 'lastUpdated', 'type', 'input', 'output', 'status', 'userId', 'appId', 'identifier'];
+
+
+	public function __construct() {
+		// add types in constructor
+		$this->addType('id', 'integer');
+		$this->addType('lastUpdated', 'integer');
+		$this->addType('type', 'string');
+		$this->addType('input', 'string');
+		$this->addType('output', 'string');
+		$this->addType('status', 'integer');
+		$this->addType('userId', 'string');
+		$this->addType('appId', 'string');
+		$this->addType('identifier', 'string');
+	}
+
+	public function toRow(): array {
+		return array_combine(self::$columns, array_map(function ($field) {
+			return $this->{'get'.ucfirst($field)}();
+		}, self::$fields));
+	}
+
+	public static function fromPublicTask(OCPTask $task): Task {
+		/** @var Task $task */
+		$task = Task::fromParams([
+			'id' => $task->getId(),
+			'type' => $task->getType(),
+			'lastUpdated' => time(),
+			'status' => $task->getStatus(),
+			'input' => $task->getInput(),
+			'output' => $task->getOutput(),
+			'userId' => $task->getUserId(),
+			'appId' => $task->getAppId(),
+			'identifier' => $task->getIdentifier(),
+		]);
+		return $task;
+	}
+
+	public function toPublicTask(): OCPTask {
+		$task = new OCPTask($this->getType(), $this->getInput(), $this->getAppId(), $this->getuserId(), $this->getIdentifier());
+		$task->setId($this->getId());
+		$task->setStatus($this->getStatus());
+		$task->setOutput($this->getOutput());
+		return $task;
+	}
+}
diff --git a/lib/private/TextProcessing/Db/TaskMapper.php b/lib/private/TextProcessing/Db/TaskMapper.php
new file mode 100644
index 00000000000..508f3fdf3b8
--- /dev/null
+++ b/lib/private/TextProcessing/Db/TaskMapper.php
@@ -0,0 +1,78 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2023 Marcel Klehr <mklehr@gmx.net>
+ *
+ * @author Marcel Klehr <mklehr@gmx.net>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+namespace OC\TextProcessing\Db;
+
+use OCP\AppFramework\Db\DoesNotExistException;
+use OCP\AppFramework\Db\Entity;
+use OCP\AppFramework\Db\MultipleObjectsReturnedException;
+use OCP\AppFramework\Db\QBMapper;
+use OCP\AppFramework\Utility\ITimeFactory;
+use OCP\DB\Exception;
+use OCP\IDBConnection;
+
+/**
+ * @extends QBMapper<Task>
+ */
+class TaskMapper extends QBMapper {
+	public function __construct(
+		IDBConnection $db,
+		private ITimeFactory $timeFactory,
+	) {
+		parent::__construct($db, 'llm_tasks', Task::class);
+	}
+
+	/**
+	 * @param int $id
+	 * @return Task
+	 * @throws Exception
+	 * @throws DoesNotExistException
+	 * @throws MultipleObjectsReturnedException
+	 */
+	public function find(int $id): Task {
+		$qb = $this->db->getQueryBuilder();
+		$qb->select(Task::$columns)
+			->from($this->tableName)
+			->where($qb->expr()->eq('id', $qb->createPositionalParameter($id)));
+		return $this->findEntity($qb);
+	}
+
+	/**
+	 * @param int $timeout
+	 * @return int the number of deleted tasks
+	 * @throws Exception
+	 */
+	public function deleteOlderThan(int $timeout): int {
+		$qb = $this->db->getQueryBuilder();
+		$qb->delete($this->tableName)
+			->where($qb->expr()->lt('last_updated', $qb->createPositionalParameter(time() - $timeout)));
+		return $qb->executeStatement();
+	}
+
+	public function update(Entity $entity): Entity {
+		$entity->setLastUpdated($this->timeFactory->now()->getTimestamp());
+		return parent::update($entity);
+	}
+}
diff --git a/lib/private/TextProcessing/Manager.php b/lib/private/TextProcessing/Manager.php
new file mode 100644
index 00000000000..f52482bbb32
--- /dev/null
+++ b/lib/private/TextProcessing/Manager.php
@@ -0,0 +1,182 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2023 Marcel Klehr <mklehr@gmx.net>
+ *
+ * @author Marcel Klehr <mklehr@gmx.net>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+namespace OC\TextProcessing;
+
+use OC\AppFramework\Bootstrap\Coordinator;
+use OC\TextProcessing\Db\Task as DbTask;
+use OCP\TextProcessing\Task as OCPTask;
+use OC\TextProcessing\Db\TaskMapper;
+use OCP\AppFramework\Db\DoesNotExistException;
+use OCP\AppFramework\Db\MultipleObjectsReturnedException;
+use OCP\BackgroundJob\IJobList;
+use OCP\Common\Exception\NotFoundException;
+use OCP\DB\Exception;
+use OCP\IServerContainer;
+use OCP\TextProcessing\IManager;
+use OCP\TextProcessing\IProvider;
+use OCP\PreConditionNotMetException;
+use Psr\Log\LoggerInterface;
+use RuntimeException;
+use Throwable;
+
+class Manager implements IManager {
+	/** @var ?IProvider[] */
+	private ?array $providers = null;
+
+	public function __construct(
+		private IServerContainer $serverContainer,
+		private Coordinator $coordinator,
+		private LoggerInterface $logger,
+		private IJobList $jobList,
+		private TaskMapper $taskMapper,
+	) {
+	}
+
+	public function getProviders(): array {
+		$context = $this->coordinator->getRegistrationContext();
+		if ($context === null) {
+			return [];
+		}
+
+		if ($this->providers !== null) {
+			return $this->providers;
+		}
+
+		$this->providers = [];
+
+		foreach ($context->getTextProcessingProviders() as $providerServiceRegistration) {
+			$class = $providerServiceRegistration->getService();
+			try {
+				$this->providers[$class] = $this->serverContainer->get($class);
+			} catch (Throwable $e) {
+				$this->logger->error('Failed to load Text processing provider ' . $class, [
+					'exception' => $e,
+				]);
+			}
+		}
+
+		return $this->providers;
+	}
+
+	public function hasProviders(): bool {
+		$context = $this->coordinator->getRegistrationContext();
+		if ($context === null) {
+			return false;
+		}
+		return count($context->getTextProcessingProviders()) > 0;
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function getAvailableTaskTypes(): array {
+		$tasks = [];
+		foreach ($this->getProviders() as $provider) {
+			$tasks[$provider->getTaskType()] = true;
+		}
+		return array_keys($tasks);
+	}
+
+	public function canHandleTask(OCPTask $task): bool {
+		return in_array($task->getType(), $this->getAvailableTaskTypes());
+	}
+
+	/**
+	 * @inheritDoc
+	 */
+	public function runTask(OCPTask $task): string {
+		if (!$this->canHandleTask($task)) {
+			throw new PreConditionNotMetException('No text processing provider is installed that can handle this task');
+		}
+		foreach ($this->getProviders() as $provider) {
+			if (!$task->canUseProvider($provider)) {
+				continue;
+			}
+			try {
+				$task->setStatus(OCPTask::STATUS_RUNNING);
+				if ($task->getId() === null) {
+					$taskEntity = $this->taskMapper->insert(DbTask::fromPublicTask($task));
+					$task->setId($taskEntity->getId());
+				} else {
+					$this->taskMapper->update(DbTask::fromPublicTask($task));
+				}
+				$output = $task->visitProvider($provider);
+				$task->setOutput($output);
+				$task->setStatus(OCPTask::STATUS_SUCCESSFUL);
+				$this->taskMapper->update(DbTask::fromPublicTask($task));
+				return $output;
+			} catch (\RuntimeException $e) {
+				$this->logger->info('LanguageModel call using provider ' . $provider->getName() . ' failed', ['exception' => $e]);
+				$task->setStatus(OCPTask::STATUS_FAILED);
+				$this->taskMapper->update(DbTask::fromPublicTask($task));
+				throw $e;
+			} catch (\Throwable $e) {
+				$this->logger->info('LanguageModel call using provider ' . $provider->getName() . ' failed', ['exception' => $e]);
+				$task->setStatus(OCPTask::STATUS_FAILED);
+				$this->taskMapper->update(DbTask::fromPublicTask($task));
+				throw new RuntimeException('LanguageModel call using provider ' . $provider->getName() . ' failed: ' . $e->getMessage(), 0, $e);
+			}
+		}
+
+		throw new RuntimeException('Could not run task');
+	}
+
+	/**
+	 * @inheritDoc
+	 * @throws Exception
+	 */
+	public function scheduleTask(OCPTask $task): void {
+		if (!$this->canHandleTask($task)) {
+			throw new PreConditionNotMetException('No LanguageModel provider is installed that can handle this task');
+		}
+		$task->setStatus(OCPTask::STATUS_SCHEDULED);
+		$taskEntity = DbTask::fromPublicTask($task);
+		$this->taskMapper->insert($taskEntity);
+		$task->setId($taskEntity->getId());
+		$this->jobList->add(TaskBackgroundJob::class, [
+			'taskId' => $task->getId()
+		]);
+	}
+
+	/**
+	 * @param int $id The id of the task
+	 * @return OCPTask
+	 * @throws RuntimeException If the query failed
+	 * @throws NotFoundException If the task could not be found
+	 */
+	public function getTask(int $id): OCPTask {
+		try {
+			$taskEntity = $this->taskMapper->find($id);
+			return $taskEntity->toPublicTask();
+		} catch (DoesNotExistException $e) {
+			throw new NotFoundException('Could not find task with the provided id');
+		} catch (MultipleObjectsReturnedException $e) {
+			throw new RuntimeException('Could not uniquely identify task with given id', 0, $e);
+		} catch (Exception $e) {
+			throw new RuntimeException('Failure while trying to find task by id: '.$e->getMessage(), 0, $e);
+		}
+	}
+}
diff --git a/lib/private/TextProcessing/RemoveOldTasksBackgroundJob.php b/lib/private/TextProcessing/RemoveOldTasksBackgroundJob.php
new file mode 100644
index 00000000000..89d329acfbb
--- /dev/null
+++ b/lib/private/TextProcessing/RemoveOldTasksBackgroundJob.php
@@ -0,0 +1,59 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2023 Marcel Klehr <mklehr@gmx.net>
+ *
+ * @author Marcel Klehr <mklehr@gmx.net>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+namespace OC\TextProcessing;
+
+use OC\TextProcessing\Db\TaskMapper;
+use OCP\AppFramework\Utility\ITimeFactory;
+use OCP\BackgroundJob\TimedJob;
+use OCP\DB\Exception;
+use Psr\Log\LoggerInterface;
+
+class RemoveOldTasksBackgroundJob extends TimedJob {
+	public const MAX_TASK_AGE_SECONDS = 60 * 50 * 24 * 7; // 1 week
+
+	public function __construct(
+		ITimeFactory $timeFactory,
+		private TaskMapper $taskMapper,
+		private LoggerInterface $logger,
+
+	) {
+		parent::__construct($timeFactory);
+		$this->setInterval(60 * 60 * 24);
+	}
+
+	/**
+	 * @param mixed $argument
+	 * @inheritDoc
+	 */
+	protected function run($argument) {
+		try {
+			$this->taskMapper->deleteOlderThan(self::MAX_TASK_AGE_SECONDS);
+		} catch (Exception $e) {
+			$this->logger->warning('Failed to delete stale language model tasks', ['exception' => $e]);
+		}
+	}
+}
diff --git a/lib/private/TextProcessing/TaskBackgroundJob.php b/lib/private/TextProcessing/TaskBackgroundJob.php
new file mode 100644
index 00000000000..4c24b3e531f
--- /dev/null
+++ b/lib/private/TextProcessing/TaskBackgroundJob.php
@@ -0,0 +1,63 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2023 Marcel Klehr <mklehr@gmx.net>
+ *
+ * @author Marcel Klehr <mklehr@gmx.net>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+namespace OC\TextProcessing;
+
+use OCP\AppFramework\Utility\ITimeFactory;
+use OCP\BackgroundJob\QueuedJob;
+use OCP\EventDispatcher\IEventDispatcher;
+use OCP\TextProcessing\Events\TaskFailedEvent;
+use OCP\TextProcessing\Events\TaskSuccessfulEvent;
+use OCP\TextProcessing\IManager;
+
+class TaskBackgroundJob extends QueuedJob {
+	public function __construct(
+		ITimeFactory             $timeFactory,
+		private IManager         $textProcessingManager,
+		private IEventDispatcher $eventDispatcher,
+	) {
+		parent::__construct($timeFactory);
+		// We want to avoid overloading the machine with these jobs
+		// so we only allow running one job at a time
+		$this->setAllowParallelRuns(false);
+	}
+
+	/**
+	 * @param array{taskId: int} $argument
+	 * @inheritDoc
+	 */
+	protected function run($argument) {
+		$taskId = $argument['taskId'];
+		$task = $this->textProcessingManager->getTask($taskId);
+		try {
+			$this->textProcessingManager->runTask($task);
+			$event = new TaskSuccessfulEvent($task);
+		} catch (\Throwable $e) {
+			$event = new TaskFailedEvent($task, $e->getMessage());
+		}
+		$this->eventDispatcher->dispatchTyped($event);
+	}
+}
diff --git a/lib/public/AppFramework/Bootstrap/IRegistrationContext.php b/lib/public/AppFramework/Bootstrap/IRegistrationContext.php
index 66cf1ef2306..720803a78d1 100644
--- a/lib/public/AppFramework/Bootstrap/IRegistrationContext.php
+++ b/lib/public/AppFramework/Bootstrap/IRegistrationContext.php
@@ -37,6 +37,7 @@ use OCP\Collaboration\Reference\IReferenceProvider;
 use OCP\EventDispatcher\IEventDispatcher;
 use OCP\Files\Template\ICustomTemplateProvider;
 use OCP\IContainer;
+use OCP\TextProcessing\IProvider as ITextProcessingProvider;
 use OCP\Notification\INotifier;
 use OCP\Preview\IProviderV2;
 use OCP\SpeechToText\ISpeechToTextProvider;
@@ -220,6 +221,16 @@ interface IRegistrationContext {
 	public function registerSpeechToTextProvider(string $providerClass): void;
 
 	/**
+	 * Register a custom text processing provider class that provides a promptable language model
+	 * through the OCP\TextProcessing APIs
+	 *
+	 * @param string $providerClass
+	 * @psalm-param class-string<ITextProcessingProvider> $providerClass
+	 * @since 27.1.0
+	 */
+	public function registerTextProcessingProvider(string $providerClass): void;
+
+	/**
 	 * Register a custom template provider class that is able to inject custom templates
 	 * in addition to the user defined ones
 	 *
diff --git a/lib/public/Common/Exception/NotFoundException.php b/lib/public/Common/Exception/NotFoundException.php
new file mode 100644
index 00000000000..a30e1c42b8b
--- /dev/null
+++ b/lib/public/Common/Exception/NotFoundException.php
@@ -0,0 +1,41 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2023 Marcel Klehr <mklehr@gmx.net>
+ *
+ * @author Marcel Klehr <mklehr@gmx.net>
+ *
+ * @license AGPL-3.0
+ *
+ * This code is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License, version 3,
+ * along with this program. If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+namespace OCP\Common\Exception;
+
+/**
+ * This is thrown whenever something was expected to exist but doesn't
+ *
+ * @since 27.1.0
+ */
+class NotFoundException extends \Exception {
+	/**
+	 * Constructor
+	 * @param string $msg the error message
+	 * @since 27.1.0
+	 */
+	public function __construct(string $msg) {
+		parent::__construct($msg);
+	}
+}
diff --git a/lib/public/TextProcessing/Events/AbstractTextProcessingEvent.php b/lib/public/TextProcessing/Events/AbstractTextProcessingEvent.php
new file mode 100644
index 00000000000..329889e61f0
--- /dev/null
+++ b/lib/public/TextProcessing/Events/AbstractTextProcessingEvent.php
@@ -0,0 +1,51 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2023 Marcel Klehr <mklehr@gmx.net>
+ *
+ * @author Marcel Klehr <mklehr@gmx.net>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+namespace OCP\TextProcessing\Events;
+
+use OCP\EventDispatcher\Event;
+use OCP\TextProcessing\Task;
+
+/**
+ * @since 27.1.0
+ */
+abstract class AbstractTextProcessingEvent extends Event {
+	/**
+	 * @since 27.1.0
+	 */
+	public function __construct(
+		private Task $task
+	) {
+		parent::__construct();
+	}
+
+	/**
+	 * @return Task
+	 * @since 27.1.0
+	 */
+	public function getTask(): Task {
+		return $this->task;
+	}
+}
diff --git a/lib/public/TextProcessing/Events/TaskFailedEvent.php b/lib/public/TextProcessing/Events/TaskFailedEvent.php
new file mode 100644
index 00000000000..f9765e362dc
--- /dev/null
+++ b/lib/public/TextProcessing/Events/TaskFailedEvent.php
@@ -0,0 +1,30 @@
+<?php
+
+namespace OCP\TextProcessing\Events;
+
+use OCP\TextProcessing\Task;
+
+/**
+ * @since 27.1.0
+ */
+class TaskFailedEvent extends AbstractTextProcessingEvent {
+	/**
+	 * @param Task $task
+	 * @param string $errorMessage
+	 * @since 27.1.0
+	 */
+	public function __construct(
+		Task $task,
+		private string $errorMessage,
+	) {
+		parent::__construct($task);
+	}
+
+	/**
+	 * @return string
+	 * @since 27.1.0
+	 */
+	public function getErrorMessage(): string {
+		return $this->errorMessage;
+	}
+}
diff --git a/lib/public/TextProcessing/Events/TaskSuccessfulEvent.php b/lib/public/TextProcessing/Events/TaskSuccessfulEvent.php
new file mode 100644
index 00000000000..df4d2ba6227
--- /dev/null
+++ b/lib/public/TextProcessing/Events/TaskSuccessfulEvent.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace OCP\TextProcessing\Events;
+
+/**
+ * @since 27.1.0
+ */
+class TaskSuccessfulEvent extends AbstractTextProcessingEvent {
+}
diff --git a/lib/public/TextProcessing/FreePromptTaskType.php b/lib/public/TextProcessing/FreePromptTaskType.php
new file mode 100644
index 00000000000..dcc27df77c9
--- /dev/null
+++ b/lib/public/TextProcessing/FreePromptTaskType.php
@@ -0,0 +1,62 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2023 Marcel Klehr <mklehr@gmx.net>
+ *
+ * @author Marcel Klehr <mklehr@gmx.net>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+namespace OCP\TextProcessing;
+
+use OCP\IL10N;
+
+/**
+ * This is the text processing task type for free prompting
+ * @since 27.1.0
+ */
+class FreePromptTaskType implements ITaskType {
+	/**
+	 * Constructor for FreePromptTaskType
+	 *
+	 * @param IL10N $l
+	 * @since 27.1.0
+	 */
+	public function __construct(
+		private IL10N $l,
+	) {
+	}
+
+
+	/**
+	 * @inheritDoc
+	 * @since 27.1.0
+	 */
+	public function getName(): string {
+		return $this->l->t('Free prompt');
+	}
+
+	/**
+	 * @inheritDoc
+	 * @since 27.1.0
+	 */
+	public function getDescription(): string {
+		return $this->l->t('Runs an arbitrary prompt through the built-in language model.');
+	}
+}
diff --git a/lib/public/TextProcessing/HeadlineTaskType.php b/lib/public/TextProcessing/HeadlineTaskType.php
new file mode 100644
index 00000000000..ad38848ea87
--- /dev/null
+++ b/lib/public/TextProcessing/HeadlineTaskType.php
@@ -0,0 +1,62 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2023 Marcel Klehr <mklehr@gmx.net>
+ *
+ * @author Marcel Klehr <mklehr@gmx.net>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+namespace OCP\TextProcessing;
+
+use OCP\IL10N;
+
+/**
+ * This is the text processing task type for creating headline
+ * @since 27.1.0
+ */
+class HeadlineTaskType implements ITaskType {
+	/**
+	 * Constructor for HeadlineTaskType
+	 *
+	 * @param IL10N $l
+	 * @since 27.1.0
+	 */
+	public function __construct(
+		private IL10N $l,
+	) {
+	}
+
+
+	/**
+	 * @inheritDoc
+	 * @since 27.1.0
+	 */
+	public function getName(): string {
+		return $this->l->t('Generate headline');
+	}
+
+	/**
+	 * @inheritDoc
+	 * @since 27.1.0
+	 */
+	public function getDescription(): string {
+		return $this->l->t('Generates a possible headline for a text');
+	}
+}
diff --git a/lib/public/TextProcessing/IManager.php b/lib/public/TextProcessing/IManager.php
new file mode 100644
index 00000000000..90e25894d4f
--- /dev/null
+++ b/lib/public/TextProcessing/IManager.php
@@ -0,0 +1,77 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2023 Marcel Klehr <mklehr@gmx.net>
+ *
+ * @author Marcel Klehr <mklehr@gmx.net>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+namespace OCP\TextProcessing;
+
+use OCP\Common\Exception\NotFoundException;
+use OCP\PreConditionNotMetException;
+use RuntimeException;
+
+/**
+ * API surface for apps interacting with and making use of LanguageModel providers
+ * without known which providers are installed
+ * @since 27.1.0
+ */
+interface IManager {
+	/**
+	 * @since 27.1.0
+	 */
+	public function hasProviders(): bool;
+
+	/**
+	 * @return class-string<ITaskType>[]
+	 * @since 27.1.0
+	 */
+	public function getAvailableTaskTypes(): array;
+
+	/**
+	 * @param Task $task The task to run
+	 * @throws PreConditionNotMetException If no or not the requested provider was registered but this method was still called
+	 * @throws RuntimeException If something else failed
+	 * @since 27.1.0
+	 */
+	public function runTask(Task $task): string;
+
+	/**
+	 * Will schedule an LLM inference process in the background. The result will become available
+	 * with the \OCP\LanguageModel\Events\TaskSuccessfulEvent
+	 * If inference fails a \OCP\LanguageModel\Events\TaskFailedEvent will be dispatched instead
+	 *
+	 * @param Task $task The task to schedule
+	 * @throws PreConditionNotMetException If no or not the requested provider was registered but this method was still called
+	 * @since 27.1.0
+	 */
+	public function scheduleTask(Task $task) : void;
+
+	/**
+	 * @param int $id The id of the task
+	 * @return Task
+	 * @throws RuntimeException If the query failed
+	 * @throws NotFoundException If the task could not be found
+	 * @since 27.1.0
+	 */
+	public function getTask(int $id): Task;
+}
diff --git a/lib/public/TextProcessing/IProvider.php b/lib/public/TextProcessing/IProvider.php
new file mode 100644
index 00000000000..6132e60b493
--- /dev/null
+++ b/lib/public/TextProcessing/IProvider.php
@@ -0,0 +1,62 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2023 Marcel Klehr <mklehr@gmx.net>
+ *
+ * @author Marcel Klehr <mklehr@gmx.net>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+namespace OCP\TextProcessing;
+
+use RuntimeException;
+
+/**
+ * This is the interface that is implemented by apps that
+ * implement a text processing provider
+ * @template T of ITaskType
+ * @since 27.1.0
+ */
+interface IProvider {
+	/**
+	 * The localized name of this provider
+	 * @since 27.1.0
+	 */
+	public function getName(): string;
+
+	/**
+	 * Processes a text
+	 *
+	 * @param string $prompt The input text
+	 * @return string the output text
+	 * @since 27.1.0
+	 * @throws RuntimeException If the text could not be processed
+	 */
+	public function process(string $prompt): string;
+
+	/**
+	 * Returns the task type class string of the task type, that this
+	 * provider handles
+	 *
+	 * @since 27.1.0
+	 * @return class-string<T>
+	 */
+	public function getTaskType(): string;
+}
diff --git a/lib/public/TextProcessing/ITaskType.php b/lib/public/TextProcessing/ITaskType.php
new file mode 100644
index 00000000000..d08da3f7ac7
--- /dev/null
+++ b/lib/public/TextProcessing/ITaskType.php
@@ -0,0 +1,49 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2023 Marcel Klehr <mklehr@gmx.net>
+ *
+ * @author Marcel Klehr <mklehr@gmx.net>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+namespace OCP\TextProcessing;
+
+/**
+ * This is a task type interface that is implemented by text processing
+ * task types
+ * @since 27.1.0
+ */
+interface ITaskType {
+	/**
+	 * Returns the localized name of this task type
+	 *
+	 * @since 27.1.0
+	 * @return string
+	 */
+	public function getName(): string;
+
+	/**
+	 * Returns the localized description of this task type
+	 *
+	 * @since 27.1.0
+	 * @return string
+	 */
+	public function getDescription(): string;
+}
diff --git a/lib/public/TextProcessing/SummaryTaskType.php b/lib/public/TextProcessing/SummaryTaskType.php
new file mode 100644
index 00000000000..3d80cee47f8
--- /dev/null
+++ b/lib/public/TextProcessing/SummaryTaskType.php
@@ -0,0 +1,62 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2023 Marcel Klehr <mklehr@gmx.net>
+ *
+ * @author Marcel Klehr <mklehr@gmx.net>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+namespace OCP\TextProcessing;
+
+use OCP\IL10N;
+
+/**
+ * This is the text processing task type for summaries
+ * @since 27.1.0
+ */
+class SummaryTaskType implements ITaskType {
+	/**
+	 * Constructor for SummaryTaskType
+	 *
+	 * @param IL10N $l
+	 * @since 27.1.0
+	 */
+	public function __construct(
+		private IL10N $l,
+	) {
+	}
+
+
+	/**
+	 * @inheritDoc
+	 * @since 27.1.0
+	 */
+	public function getName(): string {
+		return $this->l->t('Summarize');
+	}
+
+	/**
+	 * @inheritDoc
+	 * @since 27.1.0
+	 */
+	public function getDescription(): string {
+		return $this->l->t('Summarizes text by reducing its length without losing key information.');
+	}
+}
diff --git a/lib/public/TextProcessing/Task.php b/lib/public/TextProcessing/Task.php
new file mode 100644
index 00000000000..446e414cb04
--- /dev/null
+++ b/lib/public/TextProcessing/Task.php
@@ -0,0 +1,221 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2023 Marcel Klehr <mklehr@gmx.net>
+ *
+ * @author Marcel Klehr <mklehr@gmx.net>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+namespace OCP\TextProcessing;
+
+/**
+ * This is a text processing task
+ * @since 27.1.0
+ * @psalm-template T of ITaskType
+ * @psalm-template S as class-string<T>
+ * @psalm-template P as IProvider<T>
+ */
+final class Task implements \JsonSerializable {
+	protected ?int $id = null;
+	protected ?string $output = null;
+
+	/**
+	 * @since 27.1.0
+	 */
+	public const TYPES = [
+		FreePromptTaskType::class,
+		SummaryTaskType::class,
+		HeadlineTaskType::class,
+		TopicsTaskType::class,
+	];
+
+	/**
+	 * @since 27.1.0
+	 */
+	public const STATUS_FAILED = 4;
+	/**
+	 * @since 27.1.0
+	 */
+	public const STATUS_SUCCESSFUL = 3;
+	/**
+	 * @since 27.1.0
+	 */
+	public const STATUS_RUNNING = 2;
+	/**
+	 * @since 27.1.0
+	 */
+	public const STATUS_SCHEDULED = 1;
+	/**
+	 * @since 27.1.0
+	 */
+	public const STATUS_UNKNOWN = 0;
+
+	/**
+	 * @psalm-var self::STATUS_*
+	 */
+	protected int $status = self::STATUS_UNKNOWN;
+
+	/**
+	 * @psalm-param S $type
+	 * @param string $type
+	 * @param string $input
+	 * @param string $appId
+	 * @param string|null $userId
+	 * @param string $identifier An arbitrary identifier for this task. max length: 255 chars
+	 * @since 27.1.0
+	 */
+	final public function __construct(
+		protected string $type,
+		protected string $input,
+		protected string $appId,
+		protected ?string $userId,
+		protected string $identifier = '',
+	) {
+	}
+
+	/**
+	 * @psalm-param P $provider
+	 * @param IProvider $provider
+	 * @return string
+	 * @since 27.1.0
+	 */
+	public function visitProvider(IProvider $provider): string {
+		if ($this->canUseProvider($provider)) {
+			return $provider->process($this->getInput());
+		} else {
+			throw new \RuntimeException('Task of type ' . $this->getType() . ' cannot visit provider with task type ' . $provider->getTaskType());
+		}
+	}
+
+	/**
+	 * @psalm-param P $provider
+	 * @param IProvider $provider
+	 * @return bool
+	 * @since 27.1.0
+	 */
+	public function canUseProvider(IProvider $provider): bool {
+		return $provider->getTaskType() === $this->getType();
+	}
+
+	/**
+	 * @psalm-return S
+	 * @since 27.1.0
+	 */
+	final public function getType(): string {
+		return $this->type;
+	}
+
+	/**
+	 * @return string|null
+	 * @since 27.1.0
+	 */
+	final public function getOutput(): ?string {
+		return $this->output;
+	}
+
+	/**
+	 * @param string|null $output
+	 * @since 27.1.0
+	 */
+	final public function setOutput(?string $output): void {
+		$this->output = $output;
+	}
+
+	/**
+	 * @psalm-return self::STATUS_*
+	 * @since 27.1.0
+	 */
+	final public function getStatus(): int {
+		return $this->status;
+	}
+
+	/**
+	 * @psalm-param self::STATUS_* $status
+	 * @since 27.1.0
+	 */
+	final public function setStatus(int $status): void {
+		$this->status = $status;
+	}
+
+	/**
+	 * @return int|null
+	 * @since 27.1.0
+	 */
+	final public function getId(): ?int {
+		return $this->id;
+	}
+
+	/**
+	 * @param int|null $id
+	 * @since 27.1.0
+	 */
+	final public function setId(?int $id): void {
+		$this->id = $id;
+	}
+
+	/**
+	 * @return string
+	 * @since 27.1.0
+	 */
+	final public function getInput(): string {
+		return $this->input;
+	}
+
+	/**
+	 * @return string
+	 * @since 27.1.0
+	 */
+	final public function getAppId(): string {
+		return $this->appId;
+	}
+
+	/**
+	 * @return string
+	 * @since 27.1.0
+	 */
+	final public function getIdentifier(): string {
+		return $this->identifier;
+	}
+
+	/**
+	 * @return string|null
+	 * @since 27.1.0
+	 */
+	final public function getUserId(): ?string {
+		return $this->userId;
+	}
+
+	/**
+	 * @psalm-return array{id: ?int, type: S, status: 0|1|2|3|4, userId: ?string, appId: string, input: string, output: ?string, identifier: string}
+	 * @since 27.1.0
+	 */
+	public function jsonSerialize(): array {
+		return [
+			'id' => $this->getId(),
+			'type' => $this->getType(),
+			'status' => $this->getStatus(),
+			'userId' => $this->getUserId(),
+			'appId' => $this->getAppId(),
+			'input' => $this->getInput(),
+			'output' => $this->getOutput(),
+			'identifier' => $this->getIdentifier(),
+		];
+	}
+}
diff --git a/lib/public/TextProcessing/TopicsTaskType.php b/lib/public/TextProcessing/TopicsTaskType.php
new file mode 100644
index 00000000000..6162b9a13e9
--- /dev/null
+++ b/lib/public/TextProcessing/TopicsTaskType.php
@@ -0,0 +1,62 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2023 Marcel Klehr <mklehr@gmx.net>
+ *
+ * @author Marcel Klehr <mklehr@gmx.net>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+namespace OCP\TextProcessing;
+
+use OCP\IL10N;
+
+/**
+ * This is the text processing task type for topics extraction
+ * @since 27.1.0
+ */
+class TopicsTaskType implements ITaskType {
+	/**
+	 * Constructor for TopicsTaskType
+	 *
+	 * @param IL10N $l
+	 * @since 27.1.0
+	 */
+	public function __construct(
+		private IL10N $l,
+	) {
+	}
+
+
+	/**
+	 * @inheritDoc
+	 * @since 27.1.0
+	 */
+	public function getName(): string {
+		return $this->l->t('Extract topics');
+	}
+
+	/**
+	 * @inheritDoc
+	 * @since 27.1.0
+	 */
+	public function getDescription(): string {
+		return $this->l->t('Extracts topics from a text and outputs them separated by commas.');
+	}
+}
diff --git a/tests/lib/BackgroundJob/DummyJobList.php b/tests/lib/BackgroundJob/DummyJobList.php
index 42b69cfbe41..8574f462ca7 100644
--- a/tests/lib/BackgroundJob/DummyJobList.php
+++ b/tests/lib/BackgroundJob/DummyJobList.php
@@ -141,7 +141,7 @@ class DummyJobList extends \OC\BackgroundJob\JobList {
 	}
 
 	public function hasReservedJob(?string $className = null): bool {
-		return $this->reserved[$className ?? ''];
+		return isset($this->reserved[$className ?? '']) && $this->reserved[$className ?? ''];
 	}
 
 	public function setHasReservedJob(?string $className, bool $hasReserved): void {
diff --git a/tests/lib/TextProcessing/TextProcessingTest.php b/tests/lib/TextProcessing/TextProcessingTest.php
new file mode 100644
index 00000000000..797571019ce
--- /dev/null
+++ b/tests/lib/TextProcessing/TextProcessingTest.php
@@ -0,0 +1,338 @@
+<?php
+/**
+ * Copyright (c) 2023 Marcel Klehr <mklehr@gmx.net>
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
+
+namespace Test\TextProcessing;
+
+use OC\AppFramework\Bootstrap\Coordinator;
+use OC\AppFramework\Bootstrap\RegistrationContext;
+use OC\AppFramework\Bootstrap\ServiceRegistration;
+use OC\EventDispatcher\EventDispatcher;
+use OC\TextProcessing\Db\Task as DbTask;
+use OC\TextProcessing\Db\TaskMapper;
+use OC\TextProcessing\Manager;
+use OC\TextProcessing\RemoveOldTasksBackgroundJob;
+use OC\TextProcessing\TaskBackgroundJob;
+use OCP\AppFramework\Db\DoesNotExistException;
+use OCP\AppFramework\Utility\ITimeFactory;
+use OCP\Common\Exception\NotFoundException;
+use OCP\EventDispatcher\IEventDispatcher;
+use OCP\IServerContainer;
+use OCP\TextProcessing\Events\TaskFailedEvent;
+use OCP\TextProcessing\Events\TaskSuccessfulEvent;
+use OCP\TextProcessing\FreePromptTaskType;
+use OCP\TextProcessing\IManager;
+use OCP\TextProcessing\IProvider;
+use OCP\TextProcessing\SummaryTaskType;
+use OCP\PreConditionNotMetException;
+use OCP\TextProcessing\Task;
+use OCP\TextProcessing\TopicsTaskType;
+use PHPUnit\Framework\Constraint\IsInstanceOf;
+use Psr\Log\LoggerInterface;
+use Test\BackgroundJob\DummyJobList;
+
+class SuccessfulSummaryProvider implements IProvider {
+	public bool $ran = false;
+
+	public function getName(): string {
+		return 'TEST Vanilla LLM Provider';
+	}
+
+	public function process(string $prompt): string {
+		$this->ran = true;
+		return $prompt . ' Summarize';
+	}
+
+	public function getTaskType(): string {
+		return SummaryTaskType::class;
+	}
+}
+
+class FailingSummaryProvider implements IProvider {
+	public bool $ran = false;
+
+	public function getName(): string {
+		return 'TEST Vanilla LLM Provider';
+	}
+
+	public function process(string $prompt): string {
+		$this->ran = true;
+		throw new \Exception('ERROR');
+	}
+
+	public function getTaskType(): string {
+		return SummaryTaskType::class;
+	}
+}
+
+class FreePromptProvider implements IProvider {
+	public bool $ran = false;
+
+	public function getName(): string {
+		return 'TEST Free Prompt Provider';
+	}
+
+	public function process(string $prompt): string {
+		$this->ran = true;
+		return $prompt . ' Free Prompt';
+	}
+
+	public function getTaskType(): string {
+		return FreePromptTaskType::class;
+	}
+}
+
+class TextProcessingTest extends \Test\TestCase {
+	private IManager $manager;
+	private Coordinator $coordinator;
+
+	protected function setUp(): void {
+		parent::setUp();
+
+		$this->providers = [
+			SuccessfulSummaryProvider::class => new SuccessfulSummaryProvider(),
+			FailingSummaryProvider::class => new FailingSummaryProvider(),
+			FreePromptProvider::class => new FreePromptProvider(),
+		];
+
+		$this->serverContainer = $this->createMock(IServerContainer::class);
+		$this->serverContainer->expects($this->any())->method('get')->willReturnCallback(function ($class) {
+			return $this->providers[$class];
+		});
+
+		$this->eventDispatcher = new EventDispatcher(
+			new \Symfony\Component\EventDispatcher\EventDispatcher(),
+			$this->serverContainer,
+			\OC::$server->get(LoggerInterface::class),
+		);
+
+		$this->registrationContext = $this->createMock(RegistrationContext::class);
+		$this->coordinator = $this->createMock(Coordinator::class);
+		$this->coordinator->expects($this->any())->method('getRegistrationContext')->willReturn($this->registrationContext);
+
+		$this->currentTime = new \DateTimeImmutable('now');
+
+		$this->taskMapper = $this->createMock(TaskMapper::class);
+		$this->tasksDb = [];
+		$this->taskMapper
+			->expects($this->any())
+			->method('insert')
+			->willReturnCallback(function (DbTask $task) {
+				$task->setId(count($this->tasksDb) ? max(array_keys($this->tasksDb)) : 1);
+				$task->setLastUpdated($this->currentTime->getTimestamp());
+				$this->tasksDb[$task->getId()] = $task->toRow();
+				return $task;
+			});
+		$this->taskMapper
+			->expects($this->any())
+			->method('update')
+			->willReturnCallback(function (DbTask $task) {
+				$task->setLastUpdated($this->currentTime->getTimestamp());
+				$this->tasksDb[$task->getId()] = $task->toRow();
+				return $task;
+			});
+		$this->taskMapper
+			->expects($this->any())
+			->method('find')
+			->willReturnCallback(function (int $id) {
+				if (!isset($this->tasksDb[$id])) {
+					throw new DoesNotExistException('Could not find it');
+				}
+				return DbTask::fromRow($this->tasksDb[$id]);
+			});
+		$this->taskMapper
+			->expects($this->any())
+			->method('deleteOlderThan')
+			->willReturnCallback(function (int $timeout) {
+				$this->tasksDb = array_filter($this->tasksDb, function (array $task) use ($timeout) {
+					return $task['last_updated'] >= $this->currentTime->getTimestamp() - $timeout;
+				});
+			});
+
+		$this->jobList = $this->createPartialMock(DummyJobList::class, ['add']);
+		$this->jobList->expects($this->any())->method('add')->willReturnCallback(function () {
+		});
+
+		$this->manager = new Manager(
+			$this->serverContainer,
+			$this->coordinator,
+			\OC::$server->get(LoggerInterface::class),
+			$this->jobList,
+			$this->taskMapper,
+		);
+	}
+
+	public function testShouldNotHaveAnyProviders() {
+		$this->registrationContext->expects($this->any())->method('getTextProcessingProviders')->willReturn([]);
+		$this->assertCount(0, $this->manager->getAvailableTaskTypes());
+		$this->assertFalse($this->manager->hasProviders());
+		$this->expectException(PreConditionNotMetException::class);
+		$this->manager->runTask(new \OCP\TextProcessing\Task(FreePromptTaskType::class, 'Hello', 'test', null));
+	}
+
+	public function testProviderShouldBeRegisteredAndRun() {
+		$this->registrationContext->expects($this->any())->method('getTextProcessingProviders')->willReturn([
+			new ServiceRegistration('test', SuccessfulSummaryProvider::class)
+		]);
+		$this->assertCount(1, $this->manager->getAvailableTaskTypes());
+		$this->assertTrue($this->manager->hasProviders());
+		$this->assertEquals('Hello Summarize', $this->manager->runTask(new Task(SummaryTaskType::class, 'Hello', 'test', null)));
+
+		// Summaries are not implemented by the vanilla provider, only free prompt
+		$this->expectException(PreConditionNotMetException::class);
+		$this->manager->runTask(new Task(FreePromptTaskType::class, 'Hello', 'test', null));
+	}
+
+	public function testProviderShouldBeRegisteredAndScheduled() {
+		// register provider
+		$this->registrationContext->expects($this->any())->method('getTextProcessingProviders')->willReturn([
+			new ServiceRegistration('test', SuccessfulSummaryProvider::class)
+		]);
+		$this->assertCount(1, $this->manager->getAvailableTaskTypes());
+		$this->assertTrue($this->manager->hasProviders());
+
+		// create task object
+		$task = new Task(SummaryTaskType::class, 'Hello', 'test', null);
+		$this->assertNull($task->getId());
+		$this->assertNull($task->getOutput());
+
+		// schedule works
+		$this->assertEquals(Task::STATUS_UNKNOWN, $task->getStatus());
+		$this->manager->scheduleTask($task);
+
+		// Task object is up-to-date
+		$this->assertNotNull($task->getId());
+		$this->assertNull($task->getOutput());
+		$this->assertEquals(Task::STATUS_SCHEDULED, $task->getStatus());
+
+		// Task object retrieved from db is up-to-date
+		$task2 = $this->manager->getTask($task->getId());
+		$this->assertEquals($task->getId(), $task2->getId());
+		$this->assertEquals('Hello', $task2->getInput());
+		$this->assertNull($task2->getOutput());
+		$this->assertEquals(Task::STATUS_SCHEDULED, $task2->getStatus());
+
+		$this->eventDispatcher = $this->createMock(IEventDispatcher::class);
+		$this->eventDispatcher->expects($this->once())->method('dispatchTyped')->with(new IsInstanceOf(TaskSuccessfulEvent::class));
+
+		// run background job
+		$bgJob = new TaskBackgroundJob(
+			\OC::$server->get(ITimeFactory::class),
+			$this->manager,
+			$this->eventDispatcher,
+		);
+		$bgJob->setArgument(['taskId' => $task->getId()]);
+		$bgJob->start($this->jobList);
+		$provider = $this->providers[SuccessfulSummaryProvider::class];
+		$this->assertTrue($provider->ran);
+
+		// Task object retrieved from db is up-to-date
+		$task3 = $this->manager->getTask($task->getId());
+		$this->assertEquals($task->getId(), $task3->getId());
+		$this->assertEquals('Hello', $task3->getInput());
+		$this->assertEquals('Hello Summarize', $task3->getOutput());
+		$this->assertEquals(Task::STATUS_SUCCESSFUL, $task3->getStatus());
+	}
+
+	public function testMultipleProvidersShouldBeRegisteredAndRunCorrectly() {
+		$this->registrationContext->expects($this->any())->method('getTextProcessingProviders')->willReturn([
+			new ServiceRegistration('test', SuccessfulSummaryProvider::class),
+			new ServiceRegistration('test', FreePromptProvider::class),
+		]);
+		$this->assertCount(2, $this->manager->getAvailableTaskTypes());
+		$this->assertTrue($this->manager->hasProviders());
+
+		// Try free prompt again
+		$this->assertEquals('Hello Free Prompt', $this->manager->runTask(new Task(FreePromptTaskType::class, 'Hello', 'test', null)));
+
+		// Try summary task
+		$this->assertEquals('Hello Summarize', $this->manager->runTask(new Task(SummaryTaskType::class, 'Hello', 'test', null)));
+
+		// Topics are not implemented by both the vanilla provider and the full provider
+		$this->expectException(PreConditionNotMetException::class);
+		$this->manager->runTask(new Task(TopicsTaskType::class, 'Hello', 'test', null));
+	}
+
+	public function testNonexistentTask() {
+		$this->expectException(NotFoundException::class);
+		$this->manager->getTask(98765432456);
+	}
+
+	public function testTaskFailure() {
+		// register provider
+		$this->registrationContext->expects($this->any())->method('getTextProcessingProviders')->willReturn([
+			new ServiceRegistration('test', FailingSummaryProvider::class),
+		]);
+		$this->assertCount(1, $this->manager->getAvailableTaskTypes());
+		$this->assertTrue($this->manager->hasProviders());
+
+		// create task object
+		$task = new Task(SummaryTaskType::class, 'Hello', 'test', null);
+		$this->assertNull($task->getId());
+		$this->assertNull($task->getOutput());
+
+		// schedule works
+		$this->assertEquals(Task::STATUS_UNKNOWN, $task->getStatus());
+		$this->manager->scheduleTask($task);
+
+		// Task object is up-to-date
+		$this->assertNotNull($task->getId());
+		$this->assertNull($task->getOutput());
+		$this->assertEquals(Task::STATUS_SCHEDULED, $task->getStatus());
+
+		// Task object retrieved from db is up-to-date
+		$task2 = $this->manager->getTask($task->getId());
+		$this->assertEquals($task->getId(), $task2->getId());
+		$this->assertEquals('Hello', $task2->getInput());
+		$this->assertNull($task2->getOutput());
+		$this->assertEquals(Task::STATUS_SCHEDULED, $task2->getStatus());
+
+		$this->eventDispatcher = $this->createMock(IEventDispatcher::class);
+		$this->eventDispatcher->expects($this->once())->method('dispatchTyped')->with(new IsInstanceOf(TaskFailedEvent::class));
+
+		// run background job
+		$bgJob = new TaskBackgroundJob(
+			\OC::$server->get(ITimeFactory::class),
+			$this->manager,
+			$this->eventDispatcher,
+		);
+		$bgJob->setArgument(['taskId' => $task->getId()]);
+		$bgJob->start($this->jobList);
+		$provider = $this->providers[FailingSummaryProvider::class];
+		$this->assertTrue($provider->ran);
+
+		// Task object retrieved from db is up-to-date
+		$task3 = $this->manager->getTask($task->getId());
+		$this->assertEquals($task->getId(), $task3->getId());
+		$this->assertEquals('Hello', $task3->getInput());
+		$this->assertNull($task3->getOutput());
+		$this->assertEquals(Task::STATUS_FAILED, $task3->getStatus());
+	}
+
+	public function testOldTasksShouldBeCleanedUp() {
+		$this->registrationContext->expects($this->any())->method('getTextProcessingProviders')->willReturn([
+			new ServiceRegistration('test', SuccessfulSummaryProvider::class)
+		]);
+		$this->assertCount(1, $this->manager->getAvailableTaskTypes());
+		$this->assertTrue($this->manager->hasProviders());
+		$task = new Task(SummaryTaskType::class, 'Hello', 'test', null);
+		$this->assertEquals('Hello Summarize', $this->manager->runTask($task));
+
+		$this->currentTime = $this->currentTime->add(new \DateInterval('P1Y'));
+		// run background job
+		$bgJob = new RemoveOldTasksBackgroundJob(
+			\OC::$server->get(ITimeFactory::class),
+			$this->taskMapper,
+			\OC::$server->get(LoggerInterface::class),
+		);
+		$bgJob->setArgument([]);
+		$bgJob->start($this->jobList);
+
+		$this->expectException(NotFoundException::class);
+		$this->manager->getTask($task->getId());
+	}
+}