Codex 5.3 not working with copilot #9165

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opened 2026-02-16 18:11:47 -05:00 by yindo · 5 comments
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Originally created by @TheGaySupreme123 on GitHub (Feb 12, 2026).

Originally assigned to: @rekram1-node on GitHub.

Description

I tried using Codex 5.3 on Copilot plugin, but it says the model is not supported

Plugins

Github copilot

OpenCode version

1.1.60

Steps to reproduce

  1. Select Coex 5.3 on the models menu from GitHub Copilot
  2. Ask any message

Screenshot and/or share link

Image

Operating System

macos 26

Terminal

zsh

Originally created by @TheGaySupreme123 on GitHub (Feb 12, 2026). Originally assigned to: @rekram1-node on GitHub. ### Description I tried using Codex 5.3 on Copilot plugin, but it says the model is not supported ### Plugins Github copilot ### OpenCode version 1.1.60 ### Steps to reproduce 1. Select Coex 5.3 on the models menu from GitHub Copilot 2. Ask any message ### Screenshot and/or share link <img width="631" height="634" alt="Image" src="https://github.com/user-attachments/assets/61252cab-e8cc-47ed-83e1-d3fbe2468e40" /> ### Operating System macos 26 ### Terminal zsh
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@github-actions[bot] commented on GitHub (Feb 12, 2026):

This issue might be related to an existing feature request. Please check:

  • #12954: [FEATURE]: 5.3 Codex for Github Copilot provider - A feature request asking to add Codex 5.3 support for GitHub Copilot

This current issue appears to be reporting that Codex 5.3 isn't working after being selected, which could be related to the implementation of the feature in #12954.

@github-actions[bot] commented on GitHub (Feb 12, 2026): This issue might be related to an existing feature request. Please check: - #12954: [FEATURE]: 5.3 Codex for Github Copilot provider - A feature request asking to add Codex 5.3 support for GitHub Copilot This current issue appears to be reporting that Codex 5.3 isn't working after being selected, which could be related to the implementation of the feature in #12954.
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@jorismak commented on GitHub (Feb 15, 2026):

How do you get it to list at all? I can use it in copilot-cli and vscode-copilot, but it's not showing up in the model list of Opencode (even on a different system with a completely new opencode installation).

did they remove it?

@jorismak commented on GitHub (Feb 15, 2026): How do you get it to list at all? I can use it in copilot-cli and vscode-copilot, but it's not showing up in the model list of Opencode (even on a different system with a completely new opencode installation). did they remove it?
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@cavanaug commented on GitHub (Feb 15, 2026):

Not working in 1.2.5 also

@cavanaug commented on GitHub (Feb 15, 2026): Not working in 1.2.5 also
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@rekram1-node commented on GitHub (Feb 15, 2026):

Yeah It's not supported in opencode yet, it hasn't been fully rolled out.

It should roll out soon.

You may ask well I can use it in github copilot cli but not opencode why is that?

This is because WE have a separate client id than the official copilot cli, so they havent rolled it out to all clients quite yet.

@rekram1-node commented on GitHub (Feb 15, 2026): Yeah It's not supported in opencode yet, it hasn't been fully rolled out. It should roll out soon. You may ask well I can use it in github copilot cli but not opencode why is that? This is because WE have a separate client id than the official copilot cli, so they havent rolled it out to all clients quite yet.
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@cavanaug commented on GitHub (Feb 15, 2026):

No worries. Happy to wait. You guys rock!!

@cavanaug commented on GitHub (Feb 15, 2026): No worries. Happy to wait. You guys rock!!
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Reference: anomalyco/opencode#9165