When use vertex models (like gemini 3 pro perview) no session name generated. #5097

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1. skozar

   added

   bugSomething isn't workingSomething isn't working

   on Dec 5, 2025
2. github-actions

   added

   opentuiThis relates to changes in v1.0, now that opencode uses opentuiThis relates to changes in v1.0, now that opencode uses opentui

   on Dec 5, 2025
3. github-actions commented on Dec 5, 2025

   

   github-actionsBot

   on Dec 5, 2025 – with GitHub Actions

   Contributor

   More actions

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

   • Session auto naming #4040: Session auto naming - Reports that sessions fail to auto-name for certain providers (bedrock, azure) due to small model selection issues. Vertex AI appears to have the same root cause
   • Gemini 3 pro preview issues #4632: Gemini 3 pro preview issues - Specifically mentions that sessions are not automatically renamed when using google-vertex/gemini-3-pro-preview

   Feel free to ignore if none of these address your specific case.
4. rekram1-node commented on Dec 5, 2025

   

   rekram1-node

   on Dec 5, 2025

   Contributor

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   we are gonna have a fix soon, for now set:

   small_model in your opencode config

   Basically for most providers we can infer a cheaper model but things like azure bedrock vertex we cant so it silently fails rn
5. rekram1-node

   removed

   opentuiThis relates to changes in v1.0, now that opencode uses opentuiThis relates to changes in v1.0, now that opencode uses opentui

   on Dec 5, 2025
6. rekram1-node

   assigned

   thdxr

   on Dec 5, 2025
7. thdxr

   closed this as completedon Mar 25, 2026