Claude Code vs OpenAI Codex
Claude Code and OpenAI Codex both show up in our catalogue for code completion & pair programming, debug & code review, multi-step agentic workflows, which is why they end up on the same shortlist. Here is what separates them.
Claude Code
AI coding & code generation
AI coding agent that reads your codebase, edits files, and runs commands via natural language.
OpenAI Codex
AI coding agents & code generation
AI coding agent by OpenAI that builds features, runs refactors, and automates engineering workflows.
Side by side
| Spec | Claude Code | OpenAI Codex |
|---|---|---|
| Monthly price | Up to $99/mo | – |
| Free plan | No | No |
| Best for | AI coding & code generation | AI coding agents & code generation |
| Skill level | advanced | – |
| API | Yes | Yes |
| MCP support | No | No |
| Open source | No | No |
| Mobile app | No | No |
| SOC 2 | Yes | Yes |
| GDPR | Yes | Yes |
| Integrations | 4 | 1 |
| Founded | 2021 | 2021 |
| Headquarters | USA | USA |
A dash means the vendor does not publish that detail — not that the answer is no.
We compare tools on the facts we hold in our catalogue and do not name a winner. Some outbound links are affiliate links, which pay us if you subscribe. That never changes what appears here or in what order.