Codex CLI
byOpenAIlisted Jun 3, 2026
Codex CLI is OpenAI's open-source terminal-based coding agent, positioned as direct competition to Claude Code and Aider. Running in your local terminal, it can read your codebase, write and edit files, and execute shell commands with configurable approval modes. As OpenAI's answer to Anthropic's Claude Code, it's generated significant interest among developers already in the OpenAI ecosystem.
Freshness note: AI-agent behavior can change after model releases, client updates, pricing changes, or new default settings. Use the aggregate score as a historical baseline and check recent reviews plus model/runtime context before deciding.
- Pricing
- OpenAI API tokens; roughly $0.002–$0.02 per task depending on model
- Model backbone
- GPT-4.1, o4-mini
- Setup complexity
- Easy setup
- Last reviewed
- Awaiting reviews
- Recent signal
- Awaiting reviews
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