MiniMax-M2.1 fails with "cannot unmarshal string" #10760

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1. waterworthd-cim

   added

   bugSomething isn't workingSomething isn't working

   on Jan 27, 2026
2. github-actions

   assigned

   rekram1-node

   on Jan 27, 2026
3. github-actions commented on Jan 27, 2026

   

   github-actionsBot

   on Jan 27, 2026 – with GitHub Actions

   Contributor

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   This issue might be a duplicate of existing issues. Please check:

   • Bug: TypeError in session prompt handling and workflow timeout with free models #9733: Bug: TypeError in session prompt handling and workflow timeout issues with free models (similar unmarshal/command handling errors with MiniMax models)
   • opentui: fatal: undefined is not an object (evaluating 'local.agent.current().name') #10657: There is a very high probability of encountering indentation bugs when using the Edit tool in OpenCode (similar issues with GLM4.7, MiniMax M2.1, and other models)
   • Hidden calls Haiku #10272: Hidden calls Haiku (MiniMax M2.1 configuration issues with OpenRouter)
   • pinning OpenRouter provider doesn't work #10557: pinning OpenRouter provider doesn't work (MiniMax M2.1 provider pinning issues)

   Feel free to ignore if none of these address your specific case.
4. aditya-oss-prog commented on Feb 18, 2026

   

   aditya-oss-prog

   on Feb 18, 2026

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   I am getting same error

   Bad Request: body unmarshal json: cannot unmarshal string into Go struct field ChatCompletionRequestAlias.messages of type []openai.ChatMessagePart with Minimax M2.5 and Qwen/Qwen3.5-397B-A17B
5. github-actions commented on Apr 20, 2026

   

   github-actionsBot

   on Apr 20, 2026 – with GitHub Actions

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   To stay organized issues are automatically closed after 60 days of no activity. If the issue is still relevant please open a new one.
6. github-actions

   closed this as completedon Apr 20, 2026