From 772b706e204e0e239cad999d96e8eabbfc166046 Mon Sep 17 00:00:00 2001
From: Rakshit <rak1729e@gmail.com>
Date: Wed, 5 Nov 2025 20:57:34 +0530
Subject: [PATCH] =?UTF-8?q?=F0=9F=8E=99=EF=B8=8F=20fix:=20Azure=20OpenAI?=
 =?UTF-8?q?=20Speech-to-Text=20400=20Bad=20Request=20Error=20(#10355)?=
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---
 api/server/services/Files/Audio/STTService.js | 1 -
 packages/api/src/utils/azure.ts               | 6 ++++++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/api/server/services/Files/Audio/STTService.js b/api/server/services/Files/Audio/STTService.js
index 60d6a48a14..16f806de4e 100644
--- a/api/server/services/Files/Audio/STTService.js
+++ b/api/server/services/Files/Audio/STTService.js
@@ -227,7 +227,6 @@ class STTService {
     }
 
     const headers = {
-      'Content-Type': 'multipart/form-data',
       ...(apiKey && { 'api-key': apiKey }),
     };
 
diff --git a/packages/api/src/utils/azure.ts b/packages/api/src/utils/azure.ts
index b4051d3d80..1bbd0e29b2 100644
--- a/packages/api/src/utils/azure.ts
+++ b/packages/api/src/utils/azure.ts
@@ -25,6 +25,12 @@ export const genAzureEndpoint = ({
   azureOpenAIApiInstanceName: string;
   azureOpenAIApiDeploymentName: string;
 }): string => {
+  // Support both old (.openai.azure.com) and new (.cognitiveservices.azure.com) endpoint formats
+  // If instanceName already includes a full domain, use it as-is
+  if (azureOpenAIApiInstanceName.includes('.azure.com')) {
+    return `https://${azureOpenAIApiInstanceName}/openai/deployments/${azureOpenAIApiDeploymentName}`;
+  }
+  // Legacy format for backward compatibility
   return `https://${azureOpenAIApiInstanceName}.openai.azure.com/openai/deployments/${azureOpenAIApiDeploymentName}`;
 };