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OpenAI Codex CLI 0.164.0: presets and inline settings

Author
OpenAI
Published
23 October 2026
Added
26 October 2026
Original
https://github.com/openai/codex/releases/tag/rust-v0.164.0

Summary

Codex CLI 0.164.0 (2026-10-23, from the GitHub release page) adds reusable presets for prompts, slash commands, and permission settings, and lets /model and /permissions take their values inline. It also adds image previews in capable terminals, enterprise sign-in for MCP connections, and credential masking in remote shells. The changelog lists over 150 pull requests. Most of the rest is about compaction, session resume, Windows, and the remote exec server.

Key points

  • Presets: /presets stores prompts, slash commands, or permission settings in ten numbered slots, with a keyboard menu. There are also quick-dial presets for the terminal title and status-line layouts.
  • Inline arguments: /model takes model, reasoning effort, and speed in one command. /permissions takes a permission profile. /title and /statusline take arguments that last only for the session.
  • Image previews: images the agent viewed or generated show in the fullscreen transcript on terminals with Kitty or Sixel graphics.
  • MCP: connections can authenticate with eligible Codex account grants or a dedicated sign-in, including OAuth clients that need a client secret. Changes to a server's tool list now take effect within a turn. OAuth discovery prefers resource-specific scopes, and coordinated OAuth refresh is on by default.
  • Credential masking: credentials are hidden in supported remote Bash commands and Zsh snapshot sessions, including credentials from custom providers.
  • Other: the Amazon Bedrock setup wizard is on by default. A new log_dir setting chooses where the SQLite logs go. -c/--config overrides are kept when given at several subcommand levels. A failed compaction no longer leaves a partial summary in history. Sessions resume with their saved thread settings.
  • Upgrade: npm install -g @openai/codex@latest (or your package manager), then run /presets in a session to set up slots.

Why it matters

Presets and inline /model arguments make it quicker to switch between set-ups (for example a cheap fast model and a careful reasoning model) without editing config files. The MCP auth changes help in companies whose MCP servers sit behind single sign-on.