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feat(chatgpt_codex): add gpt-5.3-codex support#7318

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feat(chatgpt_codex): add gpt-5.3-codex support#7318
errfld wants to merge 1 commit intoblock:mainfrom
errfld:errfld/add-gpt-5.3-codex

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@errfld errfld commented Feb 18, 2026

Summary

  • add gpt-5.3-codex to ChatGPT Codex provider known models
  • switch ChatGPT Codex default model to gpt-5.3-codex
  • add explicit context limit for gpt-5.3-codex (400_000) in model limits

AI Assistance

  • This PR was created or reviewed with AI assistance

Testing

  • source /Users/er/Development/goose/bin/activate-hermit
  • cargo fmt
  • cargo test -p goose chatgpt_codex -- --nocapture
  • cargo test -p goose model -- --nocapture
  • cargo clippy --all-targets -- -D warnings

Related Issues

Relates to: N/A
Discussion: N/A

Screenshots/Demos (for UX changes)

Before: N/A
After: N/A

Signed-off-by: Eran Riesenfeld <eran@riesenfeld.de>
@errfld errfld force-pushed the errfld/add-gpt-5.3-codex branch from f75f702 to 1ca5d84 Compare February 18, 2026 20:29
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