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Native Metal local LLM inference runtime optimized for Apple Silicon.

BaseRT homepage screenshot

Features

  • Native Metal inference kernels
  • Support for all Apple M-series chips
  • Q2 through FP16 quantization
  • OpenAI-compatible local server
  • Multi-language SDK bindings
  • Continuous batching and KV caching

Use Cases

  • Local LLM chat on Mac
  • Privacy-sensitive offline inference
  • Local OpenAI-compatible APIs
  • Apple Silicon inference benchmarking
  • Embedding models in desktop apps
  • Low-latency agent backends

FAQ

BaseRT is a local LLM inference runtime from Base Compute built directly for Metal and Apple Silicon unified memory. It ships a CLI, C API, and Python, Node, Rust, and Swift bindings for pulling models, chatting, or serving an OpenAI-compatible API. Official benchmarks report up to 6.4x faster prefill than llama.cpp and 3.9x faster than MLX in selected tests; real gains vary by chip, model, and quantization. Core capabilities include: Native Metal inference kernels, Support for all Apple M-series chips, Q2 through FP16 quantization.

Common scenarios include: Local LLM chat on Mac, Privacy-sensitive offline inference, Local OpenAI-compatible APIs.

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