# Can I run Yi 1.5 34B on Apple M5 Max (128GB)?

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

Last validated: 2026-06-15.

## Memory math
- Yi 1.5 34B: 34B; Q4_K_M weighs 19.24 GB on disk.
- At Q4_K_M with a 4k context it needs ~21.4 GB (weights + KV cache + ~0.8 GB runtime overhead, ±15% with context length).
- Apple M5 Max (128GB): 128 GB unified, ~96 GB usable for model weights.
- Headroom: ~74.6 GB; it also fits FP16 for higher quality.

## How to run
Recommended quant: Q4_K_M. Best tool on macOS: LM Studio.

## Run Yi 1.5 34B on other devices
- [Nvidia GeForce RTX 4090 (24GB)](https://localmodel.run/can-i-run/yi-1.5-34b/nvidia-rtx-4090-24gb)
- [Nvidia GeForce RTX 3090 (24GB)](https://localmodel.run/can-i-run/yi-1.5-34b/nvidia-rtx-3090-24gb)
- [AMD Radeon RX 7900 XTX (24GB)](https://localmodel.run/can-i-run/yi-1.5-34b/amd-rx-7900-xtx-24gb)
- [Nvidia GeForce RTX 5090 (32GB)](https://localmodel.run/can-i-run/yi-1.5-34b/nvidia-rtx-5090-32gb)
- [32GB RAM Laptop (CPU/iGPU only)](https://localmodel.run/can-i-run/yi-1.5-34b/laptop-32gb)
- [Apple M4 Pro (48GB)](https://localmodel.run/can-i-run/yi-1.5-34b/apple-m4-pro-48gb)

## Other models that run on Apple M5 Max (128GB)
- [gpt-oss 120B (117B)](https://localmodel.run/can-i-run/gpt-oss-120b/apple-m5-max-128gb)
- [Llama 4 Scout (109B)](https://localmodel.run/can-i-run/llama-4-scout/apple-m5-max-128gb)
- [Sarvam-105B (105B)](https://localmodel.run/can-i-run/sarvam-105b/apple-m5-max-128gb)
- [Qwen2.5 72B (72B)](https://localmodel.run/can-i-run/qwen2.5-72b/apple-m5-max-128gb)
- [Llama 3.3 70B (70B)](https://localmodel.run/can-i-run/llama-3.3-70b/apple-m5-max-128gb)
- [Mixtral 8x7B (46.7B)](https://localmodel.run/can-i-run/mixtral-8x7b/apple-m5-max-128gb)

Estimate, not a guarantee. 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-m5-max-128gb