diff --git a/lib/private/TaskProcessing/Manager.php b/lib/private/TaskProcessing/Manager.php
index 3609f309cc47b..165cde87bf052 100644
--- a/lib/private/TaskProcessing/Manager.php
+++ b/lib/private/TaskProcessing/Manager.php
@@ -307,13 +307,18 @@ private function _getTextToImageProviders(): array {
 		$oldProviders = $this->textToImageManager->getProviders();
 		$newProviders = [];
 		foreach ($oldProviders as $oldProvider) {
-			$newProvider = new class($oldProvider, $this->appData) implements IProvider, ISynchronousProvider {
+			$newProvider = new class($oldProvider, $this->appData, $this->l10nFactory, $this->userManager) implements IProvider, ISynchronousProvider {
 				private \OCP\TextToImage\IProvider $provider;
 				private IAppData $appData;
+				private IFactory $l10nFactory;
 
-				public function __construct(\OCP\TextToImage\IProvider $provider, IAppData $appData) {
+				private IUserManager $userManager;
+
+				public function __construct(\OCP\TextToImage\IProvider $provider, IAppData $appData, IFactory $l10nFactory, IUserManager $userManager) {
 					$this->provider = $provider;
 					$this->appData = $appData;
+					$this->l10nFactory = $l10nFactory;
+					$this->userManager = $userManager;
 				}
 
 				public function getId(): string {
@@ -346,6 +351,21 @@ public function process(?string $userId, array $input, callable $reportProgress)
 					} catch (\OCP\Files\NotFoundException) {
 						$folder = $this->appData->newFolder('text2image');
 					}
+					if ($input['numberOfImages'] > 12) {
+						throw new UserFacingProcessingException(
+							'numberOfImages cannot be greater than 12',
+							userFacingMessage:
+								$this->l10nFactory->get('core', $this->l10nFactory->getUserLanguage($this->userManager->get($userId)))
+									->t('Cannot generate more than 12 images')
+						);
+					}
+					if ($input['numberOfImages'] < 1) {
+						throw new UserFacingProcessingException(
+							'numberOfImages must be greater than 0',
+							userFacingMessage:
+								$this->l10nFactory->get('core', $this->l10nFactory->getUserLanguage($this->userManager->get($userId)))
+									->t('Cannot generate less than 1 image'));
+					}
 					$resources = [];
 					$files = [];
 					for ($i = 0; $i < $input['numberOfImages']; $i++) {