Claude Code vs Codex
Compare the working environment, model access, capabilities and billing before choosing a tool.
Last verified: · How we verify
Claude Code
Anthropic’s coding agent for terminal and editor workflows.
Codex
OpenAI’s coding agent for local projects and cloud tasks.
| Decision | Claude Code2026-09-21 | Codex2026-09-21 |
|---|---|---|
| Environment | Coding agent | Coding agent |
| Platforms | macOS, Windows, Linux, Web | macOS, Windows, Linux, Web |
| Good starting point for | Developers who want an agent alongside their preferred editor. | Developers evaluating a coding agent without making it their editor. |
| Pricing model | Claude subscription or provider usage billingSee official pricingOfficial pricing ↗ | ChatGPT plan or API usagePaid from $8/moOfficial pricing ↗ |
| Free access | Not verified | Available; limits apply |
| Model access | Anthropic subscription, Console or supported third-party provider. | Model access varies by ChatGPT plan or API credentials. |
| Agent workflow | Verified | Verified |
| CLI surface | Verified | Verified |
| MCP | Verified | Verified |
| Skills | Verified | Verified |
| Rules / instructions | Not verified | Not verified |
| Hooks | Verified | Not verified |
| Memory | Not verified | Not verified |
| Bring your own key | Not verified | Not verified |
| Local models | Not verified | Not verified |
| Cloud agents | Not verified | Verified |
| Parallel agents | Not verified | Not verified |
| Check before switching | Choose between subscription and provider billing deliberately; the editor is a separate choice. | ChatGPT access and API billing are separate options. Features and limits depend on sign-in method. |
Compare both tools on the same project
Use the same small repository task in both environments. Note setup time, review steps, the checks the agent ran and the usage charged. Keep the task, acceptance criteria and model choice as comparable as possible.
Choose based on the result and your existing tools. Published feature availability does not establish code quality, reliability or which product is faster on your codebase.