Model selection for Claude and Codex agents on github.com - GitHub Changelog
… When using the Claude coding agent, the following models are currently available: Claude Sonnet 4.6 Claude Opus 4.6 Claude Sonnet 4.5 Claude Opus 4.5 When using the Codex coding agent, the following models are currently available: GPT-5.2-Codex GPT-5.3-Codex GPT-5.4 For more information, see our do… …