Updated April 2026
Devin vs OpenAI Codex
🏆 Who Should Choose Which?
OpenAI Codex
Both require payment — compare plans
Devin — simpler to start
OpenAI Codex — stronger at scale
📊 Quick Specs
🎯 Best if you need…
Quick take: Choose OpenAI Codex if you prioritize all workflows and value its unique strengths. Choose Devin if you need a different approach or better fit for your specific use case. Both score well — the best choice depends on your workflow.
Quick verdict
OpenAI Codex leads with 4.5/5 compared to Devin's 4.2/5. OpenAI Codex excels for Software engineers and development teams who want to delegate coding tasks like , whereas Devin is better for Engineering teams with consistent backlogs of well-defined tasks — migrations, r.
Devin
First fully autonomous AI software engineer that takes tickets from Jira/Linear and delivers tested
Paid
OpenAI Codex
Cloud-based autonomous coding agent by OpenAI that runs parallel tasks, writes code, runs tests, and
Paid
What is Devin?
Devin is First fully autonomous AI software engineer that takes tickets from Jira/Linear and delivers tested pull requests. Best for Engineering teams with consistent backlogs of well-defined tasks — migrations, refactoring, bug fixe.
What is OpenAI Codex?
OpenAI Codex is Cloud-based autonomous coding agent by OpenAI that runs parallel tasks, writes code, runs tests, and creates pull requests. Best for Software engineers and development teams who want to delegate coding tasks like bug fixes, feature a.
Key differences
- Rating: Devin 4.2/5 vs OpenAI Codex 4.5/5
- Pricing: Devin — Core from $20/mo (pay-as-you-go at $2.25/ACU) / Team $500/mo (250 ACUs at $2/ACU | OpenAI Codex — Included with ChatGPT Plus $20/mo / Pro $200/mo / Business $30/user/mo / Enterpr
- Best for: Devin → Engineering teams with consistent backlogs of well-defined t | OpenAI Codex → Software engineers and development teams who want to delegat
| Feature | Devin | OpenAI Codex |
|---|---|---|
| Rating | ★ 4.2 / 5 | ★ 4.5 / 5 |
| Pricing | Core from $20/mo (pay-as-you-go at $2.25/ACU) / Team $500/mo (250 ACUs at $2/ACU | Included with ChatGPT Plus $20/mo / Pro $200/mo / Business $30/user/mo / Enterpr |
| Best For | Engineering teams with consistent backlogs of well-defined tasks — migrations, refactoring, bug fixe | Software engineers and development teams who want to delegate coding tasks like bug fixes, feature a |
| Model | Paid | Paid |
Devin — Key Features
- Fully autonomous end-to-end coding from task to PR
- Sandboxed dev environment with editor, terminal, and browser
- Interactive planning — review and edit the plan before execution
- Knowledge base memory — learns your codebase conventions
- Integrates with GitHub, GitLab, Linear, Jira, Slack, and 20+ tools
- Parallel agent sessions across repositories
Pros
- Most autonomous coding agent — truly hands-off
- Excellent for code migrations, refactoring, and backlog clearing
- Interactive planning gives control before execution
- Learns your team standards over time
Cons
- ACU costs are unpredictable — complex tasks drain credits fast
- Team plan at $500/mo is expensive for small teams
- Struggles with ambiguous or novel architecture decisions
- 15-30% success rate on complex tasks in independent testing
OpenAI Codex — Key Features
- Autonomous code writing and editing in sandboxed environments
- Parallel multi-agent task execution with Git worktrees
- Pull request creation and code review
- Codex CLI — open-source terminal agent
- AGENTS.md configuration for project-specific behavior
- Supports Python, JavaScript, TypeScript, Go, Rust, Java, and more
Pros
- Parallel agents work on multiple tasks simultaneously
- Strong code quality with automated test execution
- No extra cost if you already have ChatGPT Plus
- Both cloud (web) and local (CLI) workflows
Cons
- Usage limits vary by plan and task complexity
- Requires existing ChatGPT subscription — no standalone plan
- Cloud tasks need internet connection
- Complex codebases may hit context limitations
Which tool should you choose?
Choose Devin if: you prioritise Engineering teams with consistent backlogs of well-defined tasks — migrations, refactoring, bug fixe.
Choose OpenAI Codex if: you need Software engineers and development teams who want to delegate coding tasks like bug fixes, feature a.
Pricing comparison
Devin: Core from $20/mo (pay-as-you-go at $2.25/ACU) / Team $500/mo (250 ACUs at $2/ACU) / Enterprise custom
OpenAI Codex: Included with ChatGPT Plus $20/mo / Pro $200/mo / Business $30/user/mo / Enterprise custom
Pricing verified April 2026. Use our AI Cost Calculator →
🔄 Switching? Keep in mind
Workspace data (notes, databases, projects) is the main switching cost. Most tools offer export, but formatting and relationships may not transfer cleanly. Automation workflows need to be rebuilt from scratch.
FAQ
Is Devin or OpenAI Codex better?
OpenAI Codex leads with 4.5/5 compared to Devin's 4.2/5. OpenAI Codex excels for Software engineers and development teams who want to delegate coding tasks like , whereas Devin is better for Engineering teams with consistent backlogs of well-defined tasks — migrations, r.
How much does Devin cost?
Core from $20/mo (pay-as-you-go at $2.25/ACU) / Team $500/mo (250 ACUs at $2/ACU) / Enterprise custom
How much does OpenAI Codex cost?
Included with ChatGPT Plus $20/mo / Pro $200/mo / Business $30/user/mo / Enterprise custom
Related comparisons
The Bottom Line
Choose Devin if you prioritise Engineering teams with consistent backlogs of well-defined tasks — migrations, refactoring, bug fixe. Go with OpenAI Codex if Software engineers and development teams who want to delegate coding tasks like bug fixes, feature a. Both are solid tools — the best pick depends on your workflow.
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