OpenAI Codex vs Devin
OpenAI's autonomous coding agent powered by the GPT-5 family. It reads your codebase, writes and edits code, runs tests and opens pull requests — and can run several tasks in parallel from the CLI, VS Code, web or mobile.
🧠 Expert verdict
Our expert verdict: OpenAI Codex is the stronger all-round choice, scoring 4.8/5 versus 4.3/5 for Devin, and it stands out for "Runs from CLI, IDE, web and mobile". Choose OpenAI Codex if you want the best code tool overall, especially for multi-file refactors; pick Devin if its pricing or specific features matters more for your workflow.
OpenAI Codex
OpenAI's autonomous coding agent powered by the GPT-5 family. It reads your codebase, writes and edits code, runs tests and opens pull requests — and can run several tasks in parallel from the CLI, VS Code, web or mobile.
Devin
World's first AI software engineer — autonomously plans, codes, tests and deploys full features.
OpenAI Codex
✅ Pros
- +Runs from CLI, IDE, web and mobile
- +Parallel autonomous tasks
- +Reads the whole repo before editing
- +Opens pull requests and runs tests
- +Backed by the GPT-5 family
❌ Cons
- −Best features need a paid ChatGPT plan
- −Cloud runs can be slow on large repos
- −Less mature ecosystem than some IDE agents
🎯 Best for — OpenAI Codex
🏷️ Tags — OpenAI Codex
Our Verdict
After comparing ratings, pricing and features, OpenAI Codex comes out ahead with a 4.8/5 rating. It is the better choice for most users.
Expert take on each tool
📌 OpenAI Codex
OpenAI Codex is a strong pick for teams already on ChatGPT who want one coding agent that works the same from terminal, editor, web and phone. Its parallel task execution shines on large, well-tested codebases.
❓ Frequently Asked Questions
Which is better: OpenAI Codex or Devin?
OpenAI Codex has the higher user rating (4.8/5 vs 4.3/5), making it the stronger overall pick. That said, Devin can still be the better fit depending on your budget and specific needs — see the full comparison above.
Is OpenAI Codex or Devin cheaper?
OpenAI Codex (In ChatGPT: Free / Plus $20/mo / Pro from $100/mo) is generally more budget-friendly than Devin ($500/mo). If cost is your main concern, OpenAI Codex is worth trying first — but compare the feature sets above to confirm it covers what you need.
Can I switch from OpenAI Codex to Devin?
Yes — switching between OpenAI Codex and Devin is usually straightforward since both are code tools with similar core workflows. Most users can export their data and get started with Devin within a day; just check Devin's free plan before committing to a paid tier.