Description

Environment:

• OpenCode version: 1.1.50
• OS: macOS Darwin 25.2.0
• Platform: darwin (Apple Silicon)

Azure Setup:

• Resource:
• Endpoint: https://<RESOURCE_NAME>.cognitiveservices.azure.com
• Deployments tested: Kimi-K2-Thinking, gpt-5.2
• API versions tested: 2024-10-21, 2024-05-01-preview

Problem:
Azure endpoints work perfectly via curl but fail in OpenCode with "API version not supported" or "Resource not found" errors.

Curl test (works):
curl -s "https://<RESOURCE_NAME>.cognitiveservices.azure.com/openai/deployments/gpt-5.2/chat/completions?api-version=2024-10-21"
-H "api-key: <API_KEY>"
-H "Content-Type: application/json"
-d '{"messages":[{"role":"user","content":"hi"}],"max_completion_tokens":10}'

Returns HTTP 200 with valid response

Configs tried:

1. Using baseURL:
   {
   "model": "azure/gpt-5.2",
   "provider": {
   "azure": {
   "options": {
   "apiKey": "<API_KEY>",
   "baseURL": "https://<RESOURCE_NAME>.cognitiveservices.azure.com",
   "apiVersion": "2024-10-21"
   }
   }
   }
   }

2. Using resourceName (per issue Azure OpenAI Configuration Help #6381):
   {
   "model": "azure/gpt-5.2",
   "provider": {
   "azure": {
   "options": {
   "apiKey": "<API_KEY>",
   "resourceName": "<RESOURCE_NAME>",
   "apiVersion": "2024-10-21"
   }
   }
   }
   }

Result: Both return "API version not supported" in OpenCode UI.

Expected: OpenCode should connect successfully since the underlying API works.

Notes:

• The .cognitiveservices.azure.com domain is used for Azure AI Foundry model catalog deployments (non-native OpenAI models)
• OpenCode may be defaulting to .openai.azure.com or ignoring the apiVersion config

Plugins

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OpenCode version

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Steps to reproduce

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Screenshot and/or share link

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Operating System

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Terminal

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