Codex vs Gemini CLI
Codex and Gemini CLI are both Code Generation tools in our directory. This side-by-side comparison covers pricing, user ratings, supported platforms, key features and open-source status so you can decide which one fits your needs.
Side-by-side comparison
| Attribute | Codex | Gemini CLI |
|---|---|---|
| Vendor | OpenAI | |
| Rating | ★ 4.5 | ★ 4.4 |
| Pricing | Paid | Freemium |
| Platforms | CLI, IDE, Cloud, Web | CLI, Self-hosted |
| Key features | Cloud sandbox task execution, Codex CLI (open source), IDE extension | Free tier: 60 req/min, 1,000/day, 1M-token context window, Built-in Google Search grounding |
| Headquarters | San Francisco, USA | Mountain View, USA |
| Founded | 2025 | 2025 |
| Open source | No | Yes |
Key differences
- Codex has a higher user rating (4.5★ vs 4.4★).
- Codex is Paid, while Gemini CLI is Freemium.
- Gemini CLI is open source (its code is public), while Codex is proprietary.
- Codex runs on CLI, IDE, Cloud, Web; Gemini CLI runs on CLI, Self-hosted.
Frequently asked questions
Is Codex or Gemini CLI better?
By user rating, Codex scores higher (4.5★ vs 4.4★). Both are capable Code Generation tools, so review the feature comparison for your use case.
Which is cheaper, Codex or Gemini CLI?
Codex is Paid and Gemini CLI is Freemium. Check each product page for current plan details.
Are Codex and Gemini CLI open source?
Gemini CLI is open source, while Codex is proprietary.