OpenAI Codex vs Devin

A side-by-side comparison to help you choose the right tool.

OpenAI Codex scores higher overall (86/100)

But the best choice depends on your specific needs. Compare below.

Pricing
Access depends on OpenAI product plan or API usage; advanced agent access is concentrated in higher tiers and previews.
Free plan
Yes
Best for
Developers who want AI to work more directly on real code tasks, Teams exploring terminal-first coding agents, Engineers already invested in OpenAI's ecosystem
Platforms
web, mac, windows, linux, api
API
Yes
Languages
en
Pricing
Free Devin Review for any GitHub PR. Flexible pay-as-you-go plan at $20/month plus compute usage. Team and Enterprise plans available with custom pricing.
Free plan
Yes
Best for
Engineering teams that want to delegate well-scoped coding tasks to an autonomous agent, Developers who need a second pair of eyes on PRs via the free Devin Review feature, Startups moving fast who need an AI that can take a ticket end-to-end without supervision, Teams evaluating autonomous AI engineers alongside Copilot and Cursor
Platforms
web
API
Yes
Languages
en

Choose OpenAI Codex if:

  • You are Developers who want AI to work more directly on real code tasks
  • You are Teams exploring terminal-first coding agents
  • You are Engineers already invested in OpenAI's ecosystem
  • You want to start free
Read OpenAI Codex review →

Choose Devin if:

  • You are Engineering teams that want to delegate well-scoped coding tasks to an autonomous agent
  • You are Developers who need a second pair of eyes on PRs via the free Devin Review feature
  • You are Startups moving fast who need an AI that can take a ticket end-to-end without supervision
  • You want to start free
Read Devin review →

FAQ

What is the difference between OpenAI Codex and Devin?
OpenAI Codex is openai's coding agent experience for writing, editing, understanding, and operating on codebases with a more agentic workflow. Devin is devin is an autonomous ai software engineer by cognition ai that plans, codes, debugs, and deploys across full codebases in a cloud-based ide. devin 2.0 introduced parallel agents, a $20/month plan, and a free code review tool for any github pr.
Which is cheaper, OpenAI Codex or Devin?
OpenAI Codex: Access depends on OpenAI product plan or API usage; advanced agent access is concentrated in higher tiers and previews.. Devin: Free Devin Review for any GitHub PR. Flexible pay-as-you-go plan at $20/month plus compute usage. Team and Enterprise plans available with custom pricing.. OpenAI Codex has a free plan. Devin has a free plan.
Who is OpenAI Codex best for?
OpenAI Codex is best for Developers who want AI to work more directly on real code tasks, Teams exploring terminal-first coding agents, Engineers already invested in OpenAI's ecosystem.
Who is Devin best for?
Devin is best for Engineering teams that want to delegate well-scoped coding tasks to an autonomous agent, Developers who need a second pair of eyes on PRs via the free Devin Review feature, Startups moving fast who need an AI that can take a ticket end-to-end without supervision, Teams evaluating autonomous AI engineers alongside Copilot and Cursor.