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The requested model is not supported. #12789
Description
Description
The error says Copilot doesn't support this model, but in reality only the Claude model cannot be used properly, while others like Gemini can still be successfully called. I can also use Claude normally within my Copilot. Why is this happening?
Plugins
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OpenCode version
1.1.53
Steps to reproduce
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Operating System
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Terminal
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Reacted by Till Krischer, LU XIANGRUI, Márcio, Alexander Hirner, ShirenY, Nick Kadutskyi, Nikodem Bernat, Yaroslav Gulevsky, Marcos Orallo and Samuel Doyle
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github-actions commentedon Feb 9, 2026
This issue might be a duplicate of existing issues. Please check:
Feel free to ignore if none of these address your specific case.
Tuu0617 commentedon Feb 9, 2026
The problem still exists.
Tuu0617 commentedon Feb 9, 2026
I solved this problem using
brew install anomalyco/tap/opencodeon Mac, but what should I do on Windows?dccc444 commentedon Feb 9, 2026
I have the exact same problem and version.
WilliamWelsh commentedon Feb 11, 2026
Trying to use GPT-5.2-Codex via GitHub Copilot Enterprise and I'm getting this, and it's enabled on the account
Now of course 5.3 is out, same issue
wildcatDownstairs commentedon Feb 11, 2026
The opus-4.6 model can be accessed normally in copilot, but when logging into the copilot account in OpenCode and using the Claude-related model, this error message appears.
vmagalhaes commentedon Feb 13, 2026
Same, any update @rekram1-node ?
fujunchao commentedon Feb 24, 2026
Currently, I encounter the same issue when using GitHub Copilot's GPT-5.3 Codex, but it works properly when using Cliproxy as a reverse proxy for github-copilot/gpt-5.3-codex.
tleclaire commentedon Feb 24, 2026
Same here, what can we do?
InCerryGit commentedon Mar 4, 2026
Same here.
goncalo2k commentedon Mar 6, 2026
Same here.
thenicealex commentedon Mar 8, 2026
Same here.
ahirner commentedon Mar 8, 2026
For GPT-5.4 via github, it stops one out of ca. 3 times in the last couple of days. It might still be a reliability problem on gh's side.
Usually, one can prompt it to completion.
zqcing678 commentedon Mar 10, 2026
Same here in windows
thenicealex commentedon Mar 10, 2026
I logged into the Copilot CLI and noticed some advanced models were disabled. After re-authorizing Copilot CLI, all models became available in the Copilot CLI and also worked in OpenCode, successfully resolving the issue.
SamD commentedon Jun 5, 2026
Very frustrating, just started with OpenCode go/zen and I am unable to use any of the github models.
Despite what I do I keep getting this message. Tried refreshing the models , I can see they are in the list generated by the cli but all of them are unusable
github-actions commentedon Aug 4, 2026
To stay organized issues are automatically closed after 60 days of no activity. If the issue is still relevant please open a new one.