COMPARISON · VERIFIED APRIL 2026
OpenAI Codex vs Devin
Fact-checked comparison with verified pricing.
🏆 Quick Verdict
OpenAI Codex
OpenAI Codex free
⭐ Strongest At
Every tool has one thing it does better than its competitors. Here is each one's honest edge:
OpenAI's autonomous cloud-based coding agent.
Engineering teams with consistent backlogs of well-defined tasks — migrations, refactoring, bug fixes, and repetitive infrastructure work.
📊 Quick Specs
Which one should you actually choose?
your daily work is mostly about OpenAI's autonomous cloud-based coding agent. That is the one thing it does better than Devin, and the cost of switching to it is justified only if that strength matches what you actually need.
your daily work is mostly about Engineering teams with consistent backlogs of well-defined tasks — migrations, refactoring, bug fixes, and repetitive infrastructure work. Devin owns this corner of the market — if that does not match your job, the rest of its feature parity with OpenAI Codex probably will not be the deciding factor.
OpenAI Codex and Devin both have legitimate use cases. The honest answer is to start with whichever has a free tier, run your real work through it for a week, then decide based on how it fits your workflow — not on which one looks better in a feature table.
📊 Quick Specs
Pros & Cons
OpenAI Codex
- ChatGPT ecosystem
- Code execution sandbox
- Multi-file support
- OpenAI models
- Needs ChatGPT sub
- Less mature than Claude Code
- Limited autonomy
- Sandbox constraints
Devin
- Most autonomous AI engineer
- Full dev environment
- Handles complete features
- Plans and executes independently
- Very expensive ($500/mo)
- Still in early access
- Inconsistent on complex tasks
- Black box debugging
Bottom Line
OpenAI Codex (4.3/5) — ChatGPT coding agent. Devin (4.1/5) — Autonomous AI software engineer.
Frequently asked questions
OpenAI Codex vs Devin — which one should I pick?
It depends on the job. OpenAI Codex is strongest at OpenAI's autonomous cloud-based coding agent. Devin is strongest at Engineering teams with consistent backlogs of well-defined tasks — migrations, refactoring, bug fixes, and repetitive infrastructure work. Pick OpenAI Codex if its strength matches your daily work, and Devin if the second description matches better. There is no objectively 'better' answer — only the better fit for the specific work you do most often.
Is OpenAI Codex or Devin cheaper?
OpenAI Codex pricing: see official site. Devin pricing: see official site. Pricing alone is rarely the right reason to choose between them — the wrong tool at half the price still wastes your time.
Does OpenAI Codex or Devin have a free plan?
Free-tier availability changes frequently for both OpenAI Codex and Devin. Check the official site before signing up — never trust a third-party page (including this one) to be perfectly up to date on plans.
Can I use OpenAI Codex and Devin together?
Yes — there is no technical or licensing reason you cannot use OpenAI Codex and Devin side by side. Many people do exactly this: OpenAI Codex for OpenAI's autonomous cloud-based coding agent, Devin for Engineering teams. The only cost is paying for two subscriptions if you upgrade both.
What does OpenAI Codex do that Devin cannot?
OpenAI Codex's honest edge over Devin is OpenAI's autonomous cloud-based coding agent. Devin cannot match this directly — though it has its own edge (Engineering teams with consistent backlogs of well-defined tasks — migrations, refactoring, bug fixes, and repetitive infrastructure work). If your daily work depends on what OpenAI Codex is uniquely good at, that is the deciding factor. Otherwise feature parity will probably feel close enough.