OpenAI Codex vs Devin
Side-by-side comparison of 2 tools. Click a tool name to view the full review.
Category
AI Coding
AI Coding
Description
OpenAI's cloud coding agent. Runs in a sandboxed container, reads your repo, executes tasks, and submits PRs. Uses GPT-5.3 (codex model). Available in ChatGPT.
Cognition Labs' autonomous software engineer. Handles full tasks end-to-end - reads docs, writes code, runs tests, and submits PRs in an isolated sandbox.
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