swift-mlx

Build and train MLX Swift machine learning models on Apple Silicon.

24|Updated Feb 1, 2026
One-click install
npx skills add https://github.com/PicoMLX/mlx-swift-lm-skill --skill swift-mlx-picomlx
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: swift-mlx
Source: https://github.com/PicoMLX/mlx-swift-lm-skill/tree/main/mlx-swift
Command: npx skills add https://github.com/PicoMLX/mlx-swift-lm-skill --skill swift-mlx-picomlx

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill provides guidance and examples for using the MLX Swift framework to build and train machine learning models efficiently on Apple Silicon hardware.

Core Features & Use Cases

  • Array Operations: Perform high-performance numerical computations with MLXArrays.
  • Neural Network Building: Define and utilize layers from MLXNN for various architectures.
  • Model Training: Implement training loops with automatic differentiation and optimizers.
  • Use Case: Develop and fine-tune a custom neural network for image classification directly on your Mac using Swift.

Quick Start

Use the swift-mlx skill to create a basic MLXArray and perform element-wise addition.

Frequently Asked Questions about swift-mlx

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I run local LLM inference on Apple Silicon using Swift?

Local LLM inference on Apple Silicon is enabled through the MLX Swift library, leveraging Metal and unified memory architecture for efficient execution. It supports running models directly on your Mac with high-performance memory coordination.

How do I build and train neural networks in Swift for Apple Silicon?

Building and training neural networks in Swift is accomplished using the MLXNN framework. You define layers for various architectures and implement training loops with automatic differentiation and integrated optimizers.

Can I use MLX Swift for GPU computing and array operations on Mac?

MLX Swift supports GPU computing on Mac by performing high-performance numerical computations with MLXArrays. It efficiently utilizes Apple Silicon hardware to accelerate machine learning tasks.

Does MLX Swift support automatic differentiation for model training?

Automatic differentiation is supported in MLX Swift to facilitate model training. It integrates seamlessly with optimizers to calculate gradients and update neural network weights during training loops.

How is memory managed for machine learning applications on Apple Silicon?

Memory for machine learning applications on Apple Silicon is managed efficiently via wired memory coordination. MLX Swift leverages the unified memory architecture to optimize performance during inference and training.

What is the best way to fine-tune a custom neural network for image classification on a Mac?

The best way to fine-tune a custom neural network for image classification on a Mac is using MLX Swift. It provides the necessary array operations, MLXNN layers, and automatic differentiation for high-performance local training.