# Can I run Qwen3 4B on Apple M3 Pro (18GB)?

Updated: 2026-06-15

**Yes, it runs.** Runs at Q4_K_M using ~3.8 GB of ~12 GB usable. You have room for FP16 for higher quality.

- Model: 4B, Q4_K_M 2.5 GB
- Device: 18 GB unified, ~12 GB usable for weights
- Needs ~3.8 GB at Q4_K_M; recommended quant: Q4_K_M
- Best tool on macOS: LM Studio
- Command: `ollama run qwen3:4b`

Estimate. Method: weights + KV cache + ~0.8GB overhead. Sources: https://ollama.com/library/qwen3:4b, https://huggingface.co/Qwen/Qwen3-4B-GGUF, https://github.com/QwenLM/Qwen3.

More: https://localmodel.run/can-i-run/qwen3-4b/apple-m3-18gb