OpenAI Codex CLI rust-v0.65.0

OpenAI Codex CLI rust-v0.65.0 was released on .

Summary

Highlights - Codex Max as default (7566): Codex Max is now the default model, and a TUI panic related to async-in-sync code was fixed.

Release Context

  • This was the 59th OpenAI Codex CLI release of 2025 tracked by Havoptic.
  • It shipped 2 days after OpenAI Codex CLI rust-v0.64.0 (December 2, 2025).

Shipped around the same time

Within 3 days of this release, other AI coding tools also shipped:

Compare OpenAI Codex CLI: vs Claude Code · vs Cursor · vs Gemini CLI · vs Kiro CLI · vs GitHub Copilot CLI · vs Devin Desktop · vs Antigravity CLI

Release Notes

Highlights

PRs Merged

View original release

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