OpenAI Codex CLI
Local terminal coding agent from OpenAI
What it is
Open-source terminal-based coding agent from OpenAI that runs locally, reads your repo, and executes multi-step engineering tasks with approval gates.
Pricing
Free CLI; uses your OpenAI API key for model calls
Pros
- Open source
- Runs locally
- Strong with GPT-5
Cons
- Pay-per-token can add up
- Terminal-only UX
Features
Local sandboxApproval modesMultimodal inputMCP support
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