OpenAI Codex vs Devin
An honest, side-by-side comparison from the ToolHund editors — plus what the community actually votes for.
OpenAI 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 CodexDevin
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 takes the ToolHund Score (64/100 vs 63/100) — but the right pick depends on your workflow.
Pick OpenAI Codex if you need: developers and teams using chatgpt or openai tools for software engineering work. · Pick Devin if you need: engineering teams that want to delegate larger coding tasks, bug fixes, and implementation work.
Which one should you pick?
- 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
- 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
Side-by-side comparison
| Feature | OpenAI Codex | Devin |
|---|---|---|
| Category | Agents | Agents |
| Pricing | Included with ChatGPT paid plans | Paid · From $500/mo |
| Best for | Developers and teams using ChatGPT or OpenAI tools for software engineering work. | Engineering teams that want to delegate larger coding tasks, bug fixes, and implementation work. |
| Active users | Popular | Enterprise |
| Editor rating | 4.7 / 5 | 4.6 / 5 |
- Parallel tasks
- PR automation
- Code review
- ChatGPT integration
- Autonomous PRs
- Long-running tasks
- Team workflow
- Sandboxed execution
Which one would you pick?
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Why did you choose OpenAI Codex or Devin?
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Common questions
Is OpenAI Codex better than Devin?+
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 OpenAI Codex and Devin?+
OpenAI Codex: Included with ChatGPT paid plans. Devin: Paid · From $500/mo.
Can I use both OpenAI Codex and Devin together?+
Yes — many teams pair them. Use OpenAI Codex for developers and teams using chatgpt or openai tools for software engineering work. and switch to Devin when you need engineering teams that want to delegate larger coding tasks, bug fixes, and implementation work.
Who should avoid OpenAI Codex?+
Casual or one-off users — the monthly fee won't pay back
Who should avoid Devin?+
Casual or one-off users — the monthly fee won't pay back
Other Agents comparisons
Keep comparing — see how OpenAI Codex stacks up against more tools in the same category.