Show Notes
Codex CLI 0.165.0 adds native support for Google Cloud Vertex AI using Application Default Credentials, bypassing custom proxies. We break down the required environment variables, provider caveats, and smaller fixes for reasoning effort, git worktrees, and marketplace URL validation.
More from The Codex Changelog
OpenAI has released GPT 6.1 Terra, offering a 50% price cut, faster execution on multi-step terminal tasks, and unlocked sampling parameters when reasoning effort is set to none. Learn how to switch to Terra inline in Codex CLI 0.164.0 and explore key updates in Codex Security 0.7.0.
Learn why transitioning between the Codex CLI and Desktop app can trigger thread writer lock errors caused by the managed app server daemon's 30-minute grace period. We explore workarounds like selective daemon stops, chat forking, and the unconfirmed --no-daemon flag, alongside fixes and bugs from recent 0.164.0 and 0.165.0 alpha releases.
Codex CLI 0.164.0 enables the Amazon Bedrock setup wizard by default, making it easier to use detected AWS credentials or a Bedrock bearer token. We cover the Mantle endpoint, setup options for local use and CI, and practical caveats around regional model availability, token lifetimes, IAM permissions, and request costs—plus several smaller release improvements.
Codex 0.164.0 adds enterprise MCP authentication using eligible Codex account grants or dedicated sign-in, including support for OAuth clients that require secrets. Learn what to verify before configuring a gateway, plus caveats around remote MCP settings, token refresh, credential masking, and several useful CLI and session fixes.
Codex 0.164.0 adds inline arguments to /model and /permissions, letting you switch models, reasoning effort, speed, and permission profiles without navigating pickers. Learn a practical workflow for saving those combinations in /presets, plus caveats around unsupported settings and resumed sessions.