Devin vs OpenAI Codex
An honest, side-by-side comparison from the ToolHund editors — plus what the community actually votes for.
Devin
Autonomous AI software engineer from Cognition
Devin plans, writes, tests, and ships code inside a team's existing development workflow — Cognition's autonomous engineering agent.
Visit DevinOpenAI Codex
AI coding agents for software engineering teams
Codex helps engineering teams complete pull requests, refactors, code reviews, and automations across parallel coding workflows.
Visit OpenAI CodexOpenAI Codex takes the ToolHund Score (64/100 vs 63/100) — but the right pick depends on your workflow.
Pick Devin if you need: engineering teams that want to delegate larger coding tasks, bug fixes, and implementation work. · Pick OpenAI Codex if you need: developers and teams using chatgpt or openai tools for software engineering work.
Which one should you pick?
- You need engineering teams that want to delegate larger coding tasks, bug fixes, and implementation work.
- Your team fits: great for small teams (2–20) and serious solo pros
- Learning curve OK: steep — expect a few hours to feel productive
- Pricing works: Paid · From $500/mo
- You need developers and teams using chatgpt or openai tools for software engineering work.
- Your team fits: great for small teams (2–20) and serious solo pros
- Learning curve OK: steep — expect a few hours to feel productive
- Pricing works: Included with ChatGPT paid plans
Side-by-side comparison
| Feature | Devin | OpenAI Codex |
|---|---|---|
| Category | Agents | Agents |
| Pricing | Paid · From $500/mo | Included with ChatGPT paid plans |
| Best for | Engineering teams that want to delegate larger coding tasks, bug fixes, and implementation work. | Developers and teams using ChatGPT or OpenAI tools for software engineering work. |
| Active users | Enterprise | Popular |
| Editor rating | 4.6 / 5 | 4.7 / 5 |
- Autonomous PRs
- Long-running tasks
- Team workflow
- Sandboxed execution
- Parallel tasks
- PR automation
- Code review
- ChatGPT integration
Which one would you pick?
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Why did you choose Devin or OpenAI Codex?
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Common questions
Is Devin better than OpenAI Codex?+
OpenAI Codex scores 64/100 on the ToolHund rubric vs Devin at 63/100 — but "better" depends on your workflow. OpenAI Codex wins if you need developers and teams using chatgpt or openai tools for software engineering work.
What is the pricing difference between Devin and OpenAI Codex?+
Devin: Paid · From $500/mo. OpenAI Codex: Included with ChatGPT paid plans.
Can I use both Devin and OpenAI Codex together?+
Yes — many teams pair them. Use Devin for engineering teams that want to delegate larger coding tasks, bug fixes, and implementation work. and switch to OpenAI Codex when you need developers and teams using chatgpt or openai tools for software engineering work.
Who should avoid Devin?+
Casual or one-off users — the monthly fee won't pay back
Who should avoid OpenAI Codex?+
Casual or one-off users — the monthly fee won't pay back
Other Agents comparisons
Keep comparing — see how Devin stacks up against more tools in the same category.