Codex

Codex is OpenAI's coding agent that integrates seamlessly with T-Ex LLM.

Getting Started

Codex is available immediately after installing T-Ex LLM:

# Install T-Ex LLM CLI
npm i -g @vicoa/cli

# Start Codex
T-Ex LLM codex  # or T-Ex LLM --agent codex

If you prefer Codex over Claude Code, set it as your default:

T-Ex LLM --set-default codex

After this command, simply run T-Ex LLM to launch Codex automatically.

Keep Claude Code as your default but use Codex temporarily:

T-Ex LLM --agent codex

This overrides your default agent for just this session.

You can also launch Codex using the dedicated subcommand:

T-Ex LLM codex

This is equivalent to T-Ex LLM --agent codex.

Claude Code vs. Codex in T-Ex LLM — when to reach for each agent, and how to switch
Start a Remote Session — run Codex from the mobile app or web dashboard
CLI Commands — list and stop running sessions
Troubleshooting — fixes for install and connection problems