BeginnerMac / Apple 6 min read

Mac M3 Max: The Ultimate Local LLM Setup

Maximise your Apple Silicon with Ollama. Run multiple models, set up an OpenAI-compatible API, and tune Metal GPU layers.

OllamaMacApple SiliconMetalGGUF

Install Ollama

One command install. Ollama automatically detects your Apple Silicon and uses Metal GPU acceleration.

bash

curl -fsSL https://ollama.com/install.sh | sh

Pull and run a model

Ollama defaults to Q4_K_M GGUF which is ideal for most use cases.

bash

# Pull Llama 3.1 8B (default Q4_K_M, ~5.7 GB)
ollama pull llama3.1:8b

# Or pull Qwen2.5 7B for better multilingual
ollama pull qwen2.5:7b

# Run interactively
ollama run llama3.1:8b

OpenAI-compatible API

Ollama exposes an OpenAI-compatible API at port 11434 — drop-in replacement for any app using OpenAI SDK.

bash

curl http://localhost:11434/v1/chat/completions \
  -H "Content-Type: application/json" \
  -d '{"model":"llama3.1:8b","messages":[{"role":"user","content":"Hello!"}]}'

Deployment guides are educational. Each model is subject to its own license — read the official Hugging Face model card before downloading or deploying.