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Overview
Codex is OpenAI's AI coding partner, built to drive real engineering work rather than just autocomplete snippets. It takes on the toughest problems in your codebase — hard-to-find bugs, complex refactors, and new features — and delivers high-quality results efficiently, using fewer tokens than typical agents.
Developers love Codex because it works like a true teammate: it runs multiple agents in parallel, uses computer and browser tools to verify its own work, and keeps tasks moving in the cloud even when you close your laptop. The same agent is available everywhere you code — in ChatGPT, as an IDE extension, and in the terminal — all connected by your ChatGPT account.
Teams at Wonderful, Harvey, Sierra, Ramp, and Duolingo report that Codex cuts early iteration time by 30–50%, catches bugs other bots miss, and lets them ship in a weekend what previously took a quarter.
Key Features
- Multi-Agent Workflows: Codex runs many agents in parallel, using computer and **
