## Why `/fast` was wired as a one-off slash command even though model metadata now exposes service tiers as catalog data. That meant adding another tier, such as a slower/cheaper tier, would require more hardcoded TUI plumbing instead of letting the model catalog drive the available commands. This change makes service-tier commands data-driven: each advertised `service_tiers` entry becomes a `/name` command using the catalog description, while the request path sends the tier `id` only when the selected model supports it. ## What Changed - Removed the hardcoded `/fast` slash-command variant and introduced dynamic service-tier command items in the composer and command popup. - Added toggle behavior for service-tier commands: invoking `/name` selects that tier, and invoking it again clears the selection. - Preserved the existing Fast-mode keybinding/status affordances by resolving the current model tier whose name is `fast`, while still sending the tier request value such as `priority`. - Persisted service-tier selections as raw request strings so non-fast tiers can round-trip through config. - Updated the Bedrock catalog entry to advertise fast support through `service_tiers` with `id: "priority"` and `name: "fast"`. - Added defensive filtering in core so unsupported selected service tiers are omitted from `/responses` requests. ## Validation - Added/updated coverage for dynamic service-tier slash command lookup, popup descriptions, composer dispatch, TUI fast toggling, and unsupported-tier omission in core request construction. - Local tests were not run per request. --------- Co-authored-by: Codex <noreply@openai.com>
npm i -g @openai/codex
or brew install --cask codex
Codex CLI is a coding agent from OpenAI that runs locally on your computer.
If you want Codex in your code editor (VS Code, Cursor, Windsurf), install in your IDE.
If you want the desktop app experience, run
codex app or visit the Codex App page.
If you are looking for the cloud-based agent from OpenAI, Codex Web, go to chatgpt.com/codex.
Quickstart
Installing and running Codex CLI
Install globally with your preferred package manager:
# Install using npm
npm install -g @openai/codex
# Install using Homebrew
brew install --cask codex
Then simply run codex to get started.
You can also go to the latest GitHub Release and download the appropriate binary for your platform.
Each GitHub Release contains many executables, but in practice, you likely want one of these:
- macOS
- Apple Silicon/arm64:
codex-aarch64-apple-darwin.tar.gz - x86_64 (older Mac hardware):
codex-x86_64-apple-darwin.tar.gz
- Apple Silicon/arm64:
- Linux
- x86_64:
codex-x86_64-unknown-linux-musl.tar.gz - arm64:
codex-aarch64-unknown-linux-musl.tar.gz
- x86_64:
Each archive contains a single entry with the platform baked into the name (e.g., codex-x86_64-unknown-linux-musl), so you likely want to rename it to codex after extracting it.
Using Codex with your ChatGPT plan
Run codex and select Sign in with ChatGPT. We recommend signing into your ChatGPT account to use Codex as part of your Plus, Pro, Business, Edu, or Enterprise plan. Learn more about what's included in your ChatGPT plan.
You can also use Codex with an API key, but this requires additional setup.
Docs
This repository is licensed under the Apache-2.0 License.
