Claude Code vs Codex: Which One to Choose
Content checked 2026-10-20; table data is live from the catalog
Pick Claude Code if…
you already pay for Claude (Pro, Max, Team, Enterprise) or use the Anthropic Console, want Claude models, and want to @claude on GitHub.
Pick Codex CLI if…
you have a paid ChatGPT plan, want an open-source client you can audit or fork, or need custom or local model providers via config.
Facts side by side
| Claude Code | Codex CLI | |
|---|---|---|
| Positioning | Use natural-language commands to work on code and Git workflows from your terminal, IDE, or GitHub. | OpenAI's official coding agent for your terminal |
| Source review | Insufficient evidence 20 releases since the review — the score may be stale | Insufficient evidence 3 releases since the review — the score may be stale |
| Delivery | CLI | CLI |
| Cost | Free software; you pay for model usage | Free tier plus a paid hosted plan |
| Setup effort | Low · running in minutes | Low · running in minutes |
| Full support on | Claude Code | — |
| License | Not stated | Apache-2.0 |
| Language | TypeScript | Rust |
| Stars | ★ 153k+310.0/day over 7 days | ★ 130k+157.3/day over 7 days |
| Updated | 1d ago | today |
| Latest stable release | v2.1.303 · 2026-10-18 | rust-v0.163.0 · 2026-10-15 |
Source review (FARS), dimension by dimension
At least one side has no usable source-review score, so dimensions cannot be compared.
Claude Code: not enough source evidence to score (e.g. the repo ships no source, or the evidence missed the docs). This is not a review result of 0.
Codex CLI: not enough source evidence to score (e.g. the repo ships no source, or the evidence missed the docs). This is not a review result of 0.
Key differences
- Plan and cost: Claude Code requires a Pro, Max, Team, Enterprise or Console account — the free claude.ai plan does not include it. It can also run through Amazon Bedrock, Google Cloud or Microsoft Foundry. [1]
- Plan and cost: Codex CLI recommends signing in with ChatGPT, counting against a Plus, Pro, Business, Edu or Enterprise plan; an API key works too with extra setup. [1]
- Open source: Codex CLI's source lives in openai/codex under Apache-2.0. The anthropics/claude-code repo holds plugins, the issue tracker and data-use notes but not the CLI source, so FollowAgents cannot source-review it. [1][2]
- Models: Codex lets you define custom model providers in config.toml; built-in provider IDs include openai, ollama and lmstudio. [1]
- Surfaces: Codex ships a CLI, IDE extension (VS Code, Cursor, Windsurf), desktop app (
codex app) and the cloud Codex Web; Claude Code runs in the terminal, IDEs, or via @claude on GitHub. [1][2]
Who it is not for
Claude Code
- Developers who want non-Anthropic models or a multi-provider setup
- Compliance teams needing documented permission boundaries and failure recovery, which the README omits
Codex CLI
- Teams that need fully offline use without a ChatGPT account
- Developers who want an IDE or web UI and avoid the terminal
FAQ
Is Claude Code free?
No. The official setup docs require a Pro, Max, Team, Enterprise or Console account; the free claude.ai plan does not include Claude Code.
[1]
Is Codex open source?
Codex CLI is: its source is on GitHub at openai/codex under Apache-2.0. Codex Web is a separate hosted service on chatgpt.com.
[1]
Can Codex use local models?
Through config. Codex's advanced configuration docs list built-in ollama and lmstudio providers and allow custom ones.
[1]