Codex CLI vs AirLLM

A side-by-side comparison of features, pricing, and characteristics.

Codex CLI

An open-source, terminal-based AI coding agent by OpenAI that automates repository tasks, reviews pull requests, and runs tests in sandboxed environments.

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AirLLM

Open-source Python library that runs very large language models on low-memory GPUs by streaming model layers one at a time.

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AttributeCodex CLIAirLLM
Pricing typeFree + paid (from $20/mo)Free
Korean supportNoNo
PlatformsmacOS, Linux, Windows (WSL2)Linux, macOS, CUDA-enabled NVIDIA GPUs, Apple Silicon
Open sourceYesYes
API available--
SDK--
LLM-based--
Multimodal--
AI modelGPT, CodexLlama, Qwen, DeepSeek, Mistral, Mixtral, Phi, Gemma
GitHub Stars122.0K33.8K
VendorOpenAIAnima AI LLC
CategoryDeveloper ToolsDeveloper Tools
DetailsView View

Codex CLI key features

  • Terminal-based execution (CLI)
  • Execution in an isolated cloud sandbox
  • Natural language-based code generation and editing
  • Automated testing and debugging loop
  • Git and GitHub workflow integration (automatic PR generation)
  • Custom skill expansion (SKILL.md)

AirLLM key features

  • Reducing GPU memory usage through layer-wise model streaming
  • Supporting inference of 70B-class models on a single 4GB GPU
  • AutoModel interface based on Hugging Face model IDs
  • 4-bit and 8-bit block-wise model compression
  • Supporting CPU inference and Apple Silicon macOS
  • Supporting various model families including Llama, Qwen, DeepSeek, and Mistral