# Can I run Yi 1.5 34B on Apple M4 Max (128GB)?

Updated: 2026-06-15

**Yes, it runs.** Runs at Q4_K_M using ~21.4 GB of ~96 GB usable. You have room for FP16 for higher quality.

- Model: 34B, Q4_K_M 19.24 GB
- Device: 128 GB unified, ~96 GB usable for weights
- Needs ~21.4 GB at Q4_K_M; recommended quant: Q4_K_M
- Best tool on macOS: LM Studio

Estimate. Method: weights + KV cache + ~0.8GB overhead. Sources: https://huggingface.co/bartowski/Yi-1.5-34B-Chat-GGUF, https://huggingface.co/01-ai/Yi-1.5-34B-Chat.

More: https://localmodel.run/can-i-run/yi-1.5-34b/apple-m4-max-128gb