Codex CLI vs llama.cpp
A detailed comparison of Codex CLI and llama.cpp across 11 dimensions.
Codex CLI
OpenAI's open-source AI coding agent CLI
- Price
- BYOK (Bring Your Own Key)
- GitHub Stars
- 100K+
- Open Source
- true
- Models
- GPT-4o, GPT-4.1, o-series (via API)
- Max Context
- 128K tokens
- Multi-file Edit
- true
- Git Integration
- true
- MCP Support
- true
- Sub-agents
- false
- Platforms
- macOS, Linux
- Released
- 2025
npm install -g @openai/codexllama.cpp
C/C++ LLM inference engine
- Price
- Free (local)
- GitHub Stars
- 121K+
- Open Source
- true
- Models
- GGUF models (Llama, Mistral, Qwen, etc.)
- Max Context
- 可配置（最高 128K+）
- Multi-file Edit
- false
- Git Integration
- false
- MCP Support
- false
- Sub-agents
- false
- Platforms
- macOS, Linux, Windows
- Released
- 2023
brew install llama.cppFull Comparison
| Tool | Price | GitHub Stars | Open Source | Models | Max Context | Multi-file Edit | Git Integration | MCP Support | Sub-agents |
|---|---|---|---|---|---|---|---|---|---|
Codex CLI🔓 OpenAI's open-source AI coding agent CLI | BYOK (Bring Your Own Key) | 100K+ | ✓ | GPT-4o, GPT-4.1, o-series (via API) | 128K tokens | ✓ | ✓ | ✓ | — |
llama.cpp🔓 C/C++ LLM inference engine | Free (local) | 121K+ | ✓ | GGUF models (Llama, Mistral, Qwen, etc.) | 可配置（最高 128K+） | — | — | — | — |
Quick Install
Codex CLI
npm install -g @openai/codexllama.cpp
brew install llama.cpp