OpenAI Codex vs Devin
Short answer: OpenAI Codex is in CLI coding agents; Devin is in Autonomous coding agents, so they solve different parts of the job. OpenAI Codex has the lower entry price ($8/month vs $20/month for Devin). Both OpenAI Codex and Devin have a free plan.
| OpenAI Codex | Devin | |
|---|---|---|
| Type | CLI coding agents | Autonomous coding agents |
| Vendor | OpenAI | Cognition |
| Status | Active | Active |
| Free plan | Yes (Codex is included in ChatGPT Free (quick coding tasks).) | Yes (Free plan per devin.ai/pricing; Pro adds access to cloud agents (Devin Cloud).) |
| Paid plans from | $8/mo | $20/mo |
| Plans | Free: Free · Go: $8 · Plus: $20 · Pro: $100 · Business: $25 · Enterprise & Edu: — | Free: Free · Pro: $20 · Max: $200 · Teams: $80 · Enterprise: — |
| Open source | Not verified yet | Not verified yet |
| Editors named on vendor page | terminal/CLI | terminal/CLI |
| Features named on vendor page | MCP, self-hosting, code review, code completion, security scanning, background/cloud agents, SSO/SAML | MCP, background/cloud agents, refactoring, security scanning, SSO/SAML, code completion |
| Model families named | Claude, OpenAI GPT | Claude, OpenAI GPT, Gemini, Grok, open-weight models |
| Checked | Oct 26, 2026 | Oct 26, 2026 |
“Named on vendor page” means the phrase appears on the vendor's own page we captured; it is not a hands-on test. Unknown values are left blank rather than guessed.
FAQ
Is OpenAI Codex cheaper than Devin?
OpenAI Codex has the lower entry price ($8/month vs $20/month for Devin). Prices are from each vendor's pricing page.
Do OpenAI Codex and Devin have free plans?
Both OpenAI Codex and Devin have a free plan.
What is the difference between OpenAI Codex and Devin?
OpenAI Codex is in CLI coding agents; Devin is in Autonomous coding agents, so they solve different parts of the job. OpenAI Codex is made by OpenAI; Devin is made by Cognition. See the table for plans, editors and features each vendor names.