Codex vs Devin: Side-by-Side Comparison 2026
Codex vs Devin comparison 2026. Side-by-side features, pricing & capabilities.
| Feature | Codex | Devin |
|---|---|---|
| Category | Agent | Agent |
| Starting Price | Free | $20/mo |
| Model Family | GPT / Codex | Proprietary |
| Code Completion | ✓ | — |
| Chat | ✓ | ✓ |
| Agentic Mode | ✓ | ✓ |
| Multi-File Editing | ✓ | ✓ |
| Terminal Commands | ✓ | ✓ |
| Browser Use | — | ✓ |
| App Generation | ✓ | ✓ |
| Git Integration | ✓ | ✓ |
| Supported IDEs | Codex App (macOS), VS Code, CLI, Web | Web-based (VSCode-inspired interface) |
| Open Source | Yes (CLI) | No |
Pricing verified 2026-02-06. Codex pricing | Devin pricing
Overview
Codex is an AI agent from OpenAI. Devin is an AI agent from Cognition. Both tools are actively maintained as of 2026.
Codex: What You Get
OpenAI's autonomous coding agent. Available via web, desktop app (macOS), CLI (macOS/Linux/Windows), and VS Code extension.
- Code completions
- AI chat
- Agentic mode
- Multi-file editing
- Terminal commands
- Test generation
- Debugging
- Code review
- Git integration
- App generation
Pricing: Free / $8/mo. 6 plans available.
Devin: What You Get
Autonomous AI coding agent by Cognition. Handles full development tasks end-to-end. Cognition also owns Windsurf, integrating IDE and agent workflows.
- AI chat
- Agentic mode
- Multi-file editing
- Terminal commands
- Test generation
- Debugging
- Git integration
- App generation
- Deployment
Pricing: $20/mo. 3 plans available.
Key Differences
- Category: Codex is an AI agent, Devin is an AI agent.
- Free tier: Codex has a free tier; Devin does not.
- Model family: Codex uses GPT / Codex; Devin uses Proprietary.
Which Should You Choose?
Choose Codex if you want Codex handles multi-step tasks independently. Choose Devin if you want Devin handles multi-step tasks independently. Both tools are strong options — the right choice depends on your workflow and priorities.