diff --git a/lib/Service/OpenAiAPIService.php b/lib/Service/OpenAiAPIService.php
index e96fb5a9..2b50cdc9 100644
--- a/lib/Service/OpenAiAPIService.php
+++ b/lib/Service/OpenAiAPIService.php
@@ -73,6 +73,15 @@ public function isUsingOpenAi(): bool {
 		return $serviceUrl === '' || $serviceUrl === Application::OPENAI_API_BASE_URL;
 	}
 
+	/**
+	 * @return bool
+	 */
+	public function isUsingOpenRouter(): bool {
+		$serviceUrl = $this->openAiSettingsService->getServiceUrl();
+		// Return true if the service URL references OpenRouter (e.g., openrouter.ai)
+		return str_starts_with(strtolower($serviceUrl), 'https://openrouter.ai');
+	}
+
 	/**
 	 * @return string
 	 */
@@ -177,7 +186,8 @@ public function getModels(?string $userId, bool $refresh = false): array {
 
 		try {
 			$this->logger->debug('Actually getting OpenAI models with a network request');
-			$modelsResponse = $this->request($userId, 'models');
+			$params = $this->isUsingOpenRouter() ? ['output_modalities' => 'all'] : [];
+			$modelsResponse = $this->request($userId, 'models', $params);
 		} catch (Exception $e) {
 			$this->logger->warning('Error retrieving models (exc): ' . $e->getMessage());
 			throw $e;