**Osaurus** is a native macOS app and LLM server for Apple Silicon that runs local MLX models from Hugging Face and connects to remote providers like OpenAI, Anthropic, and Ollama via compatible APIs.

It offers native Swift/Rust tools for browser automation, files, git, and more, with a menu bar chat UI and performance outperforming Ollama in benchmarks on M-series chips. Open source under MIT license, it weighs 10MB, supports offline use, and integrates with Cursor and IDEs.