OpenAI Codex

Best for ChatGPT-bundled coding agent, local or in the cloud.

OpenAI's coding agent, available as an open-source terminal CLI, an IDE extension, a desktop app and a cloud workspace that can run tasks and open pull requests without your machine. It plans and executes multi-step changes across a codebase rather than completing lines. A solo game maker would use it to build features, chase bugs, review diffs and run long background tasks against a repo, signing in with an ordinary ChatGPT account.

Website ↗ Repository ↗ Docs ↗

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OpenAI Codex — Picture from the openai/codex README.

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