OpenCode Zen GPT-5.2 Codex install model fails (ProviderModelNotFoundError)

[justcarlson]

Repro (from opencode github install):

1. Install flow: Provider = OpenCode Zen, Model = GPT-5.2 Codex. Installer adds .github/workflows/opencode.yml with model: opencode/gpt-5.2-codex.
2. Action fails with ProviderModelNotFoundError.
3. https://opencode.ai/zen/v1/models lists gpt-5.2-codex.
4. Switching workflow to model: gpt-5.2-codex fails: "Model must be in the format provider/model".

Expected: the installer should emit a model string that both passes CLI validation and resolves, or the models endpoint should return provider-prefixed IDs consistent with the CLI.

[github-actions]

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

• ProviderModelNotFoundError for custom provider in GitHub Action (worked until 07 Jan) #7958: ProviderModelNotFoundError for custom provider in GitHub Action (worked until 07 Jan) - Also involves GitHub Actions, model format resolution, and the gap between API list and CLI validation
• Auto-discover models from OpenAI-compatible provider endpoints #6231: Auto-discover models from OpenAI-compatible provider endpoints - Related to the models endpoint and model ID format requirements

Feel free to ignore if none of these address your specific case.

[justcarlson]

I have Zen set up with an API key in my repo, so it should have recognized the model ID opencode/gpt-5.2-codex. Odd.

[rekram1-node]

Hm that's weird, if I get a chance Ill investigate

[thesobercoder]

@rekram1-node Same with Copilot, I have the model enabled, but it just won't work.