diff --git a/src/routes/azureOpenaiRoutes.js b/src/routes/azureOpenaiRoutes.js
index a0f9b344..ba653ba9 100644
--- a/src/routes/azureOpenaiRoutes.js
+++ b/src/routes/azureOpenaiRoutes.js
@@ -296,7 +296,7 @@ router.post('/responses', authenticateApiKey, async (req, res) => {
         deploymentName: account.deploymentName,
         apiVersion: account.apiVersion
       },
-      targetUrl: `${account.azureEndpoint}/openai/responses?api-version=${account.apiVersion || '2025-04-01-preview'}`,
+      targetUrl: `${account.azureEndpoint}/openai/deployments/${account.deploymentName}/responses?api-version=${account.apiVersion || '2024-10-01-preview'}`,
       endpoint: 'responses',
       isStream: req.body.stream || false
     })
diff --git a/src/services/azureOpenaiRelayService.js b/src/services/azureOpenaiRelayService.js
index 8309d622..8d8c27e0 100644
--- a/src/services/azureOpenaiRelayService.js
+++ b/src/services/azureOpenaiRelayService.js
@@ -29,7 +29,7 @@ async function handleAzureOpenAIRequest({
     deploymentName = account.deploymentName || 'default'
     // Azure Responses API requires preview versions; fall back appropriately
     const apiVersion =
-      account.apiVersion || (endpoint === 'responses' ? '2025-04-01-preview' : '2024-02-01')
+      account.apiVersion || (endpoint === 'responses' ? '2024-10-01-preview' : '2024-02-01')
     if (endpoint === 'chat/completions') {
       requestUrl = `${baseUrl}/openai/deployments/${deploymentName}/chat/completions?api-version=${apiVersion}`
     } else if (endpoint === 'responses') {