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Codex CLI

OpenAI · CLI

Codex CLI 0.159.0-alpha.13

0.159.0-alpha.12→0.159.0-alpha.13·September 28, 2026 at 4:18 PM UTC

Patch-level alpha 0.159.0-alpha.13: CI environment detection was renamed, and the built-in model list no longer includes o1.

Changelog

  • [removed] The built-in model list no longer includes o1.
  • [changed] CI environment detection now uses CODEX_CIBASH_ENV instead of CODEX_CI.

Under the hood

  • The TUI chat widget now drives turns through a dedicated turn runtime.
  • Configured hook handlers were updated internally (prompt-based handlers replace the previous command/prompt split).

Upgrade notes

  • If your CI or scripts set CODEX_CI, switch them to CODEX_CIBASH_ENV.
  • If a profile or session still pins o1, choose a current model before upgrading.

content/

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31 listed · 32 in tree · 17 under docs/

content/ browserNavigate docs, prompts, and root filesFolder index plus per-file pages with prev/next and a full file sidebar.
README.mdDocs3.3 KBCHANGELOG.mdDocs330 BAGENTS.mdDocs21.9 KBconfig.mdDocs351 Bdocs/agents_md.mdDocs126 Bdocs/authentication.mdDocs134 Bdocs/CLA.mdDocs2 KBdocs/codex-rs/bazel.mdDocs7.4 KBdocs/codex-rs/protocol_v1.mdDocs9.2 KBdocs/config.mdDocs726 Bdocs/contributing.mdDocs2.6 KBdocs/example-config.mdDocs134 BView all 31 files in content/ browser →
Older release← 0.159.0-alpha.12Newer release→ 0.160.0-alpha.2
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