MTPLX

MTPLX

3.0

MTPLX is a free, open-source Mac app that doubles the speed of local LLMs with native MTP speculative decoding on Apple Silicon, compatible with OpenAI and Anthropic APIs.

Last Updated Sep 4, 2026
MTPLX screenshot

About

MTPLX is a free, open-source Mac application designed for Apple Silicon, delivering twice the speed when running local large language models (LLMs). By leveraging native MTP speculative decoding, it significantly boosts inference performance while remaining compatible with OpenAI and Anthropic APIs, ensuring seamless integration for developers.

Key Features

High-Speed Inference: Achieves up to 2x faster model execution using MTP speculative decoding.
Local Operation: Runs entirely on-device, ensuring data privacy and security without cloud dependency.
API Compatibility: Supports both OpenAI and Anthropic interfaces, facilitating migration and integration into existing workflows.
Free and Open Source: Completely free with open-source code, allowing customization and community contributions.

Pricing & Fees

  • Apple Silicon Optimization: Deeply optimized for M-series chips, maximizing hardware performance.
  • Ease of Use: Clean interface, no complex setup required to start running models.
  • Ecosystem Friendly: Compatible with mainstream AI toolchains, lowering the barrier to adoption.

Who It's For

Ideal for developers, AI researchers, data scientists, and users who prioritize privacy on their local devices. Whether building AI applications, conducting experiments, or using AI assistants daily, MTPLX offers an efficient and secure solution.