Comparisons
OpenAI Codex CLI vs Gemini CLI
Side-by-side comparison of features, pricing, and ratings
OpenAI Codex CLI vs Gemini CLI
| Feature | OpenAI Codex CLI | Gemini CLI |
|---|---|---|
| Category | Coding Agents | Coding Agents |
| Pricing | Freemium ($0) | Freemium ($0) |
| Rating | 8.6 /10 Top Rated | 8.4 /10 |
| Sandboxed command execution with approval modes | — | |
| OpenAI o-series and GPT-5 model access | — | |
| Open-source Rust implementation | — | |
| Model Context Protocol (MCP) support | ||
| ChatGPT desktop and web integration | — | |
| Multi-file editing in the terminal | — | |
| ReAct (Reason-Act) loop for multi-step task execution | — | |
| Built-in tools: grep, terminal, file read/write | — | |
| Web search and fetch for real-time information | — | |
| Agent Skills for reusable task patterns | — | |
| Headless mode for scripting and CI/CD | — | |
| Gemini Code Assist IDE integration | — | |
| Google Cloud Shell pre-installed | — |
Which is better: OpenAI Codex CLI or Gemini CLI?
Both are excellent tools — your choice depends on specific needs:
O
OpenAI Codex CLI
Choose OpenAI Codex CLI if you
- Summary: 8.6/10 vs 8.4/10
- Value for Money 9.0
- Performance 9.0
G
Gemini CLI
Choose Gemini CLI if you
- Self-Host ✓
- GitHub ★105,000
- Features 9.0
- Support 9.0