Devin vs Codex CLI

Which is better in 2026? We compare Devin and Codex CLI side by side — pricing, features, pros & cons — so you can choose the right Code tool.

🏆 Devin has the higher rating (4.5/5)

🏆 Higher Rated

Devin

★4.5

The first AI software engineer by Cognition. Autonomously plans, writes, debugs, and deploys code. Can handle entire engineering tasks end-to-end.

PricingPaid

CategoryCode

Rating4.5/5

Visit Devin →Full profile Devin alternatives →

Codex CLI

★4.3

OpenAI's open-source coding agent. Runs in your terminal, understands natural language, executes code, and manages files with sandboxed safety.

PricingFree

CategoryCode

Rating4.3/5

Visit Codex CLI →Full profile Codex CLI alternatives →

Feature Comparison

Feature	Devin	Codex CLI
Autonomous coding	✓	—
Full codebase understanding	✓	—
Browser and terminal access	✓	—
Bug fixing	✓	—
Deployment support	✓	—
Natural language commands	—	✓
Sandboxed execution	—	✓
File management	—	✓
Multi-language support	—	✓
Open source	—	✓

Pricing Comparison

Devin

Paid

Paid subscription required. No permanent free tier.

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Codex CLI

Free

Completely free to use with no paid tiers.

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Pros & Cons

Devin

👍 Pros

+Full autonomous software engineer
+Plans, codes, debugs independently
+Uses real dev tools and terminal
+Handles complex multi-step tasks

👎 Cons

−Very expensive pricing
−Limited availability
−Can go off-track on complex tasks
−Requires careful task specification

Codex CLI

👍 Pros

+Open source by OpenAI
+Terminal-native workflow
+Sandboxed code execution
+Multi-model support

👎 Cons

−Requires OpenAI API key
−Early stage product
−Limited documentation
−CLI-only interface

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