GitHub Copilot vs OpenAI Codex
GitHub Copilot GitHub (Microsoft)
Code completion, chat and a coding agent across VS Code, JetBrains IDEs and github.com, with a choice of models.
VisitOpenAI Codex OpenAI
OpenAI’s coding agent, in ChatGPT, a terminal CLI and IDE extensions, that works on tasks in the cloud or locally.
VisitSide by side
| Property | GitHub Copilot | OpenAI Codex |
|---|---|---|
| Type | Product | Product |
| Category | AI coding tools | AI coding tools |
| Made by | GitHub (Microsoft) | OpenAI |
| Pricing | Free plan + paid | Paid |
| Open source | No | Yes |
| API | No | Yes |
| Platforms | IDE, Terminal, Web | Terminal, IDE, Web |
| Startup | No | Yes |
Features
Only GitHub Copilot
- autocomplete
- multi-model
Both
- coding agent
- code review
- mcp
Only OpenAI Codex
- terminal
- autonomous