Fix GPT-5.6 availability in Codex catalog#469
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alejandro-ao
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July 24, 2026 09:23
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Summary
gpt-5.6API alias from the built-in OpenAI Codex subscription cataloggpt-5.6for direct OpenAI API users and retain explicit GPT-5.6 variants for CodexUser experience
Codex subscription users no longer see or select an alias that ChatGPT-account Codex requests reject with HTTP 400. Direct OpenAI API behavior is unchanged.
Issue
Addresses the reported unsupported-model error for
openai-codex; no linked GitHub issue.Manual validation
/login openai-codex.gpt-5.6is absent whilegpt-5.6-solremains available.openaiprovider and confirmgpt-5.6remains available there.gpt-5.6-solwith OpenAI Codex and send a prompt.Checks
uv run pytestuv run ruff check .uv run ruff format --check .uv run mypyuv buildcd website && hugo --minify && npx --yes pagefind@latest --site public