# Can I run SmolLM2 135M on Apple M3 Ultra (256GB)?

> **Yes, it runs.** Runs at Q4_K_M using ~1 GB of ~192 GB usable. You have room for FP16 for higher quality.

Last validated: 2026-06-15.

## Memory math
- SmolLM2 135M: 0.135B; Q4_K_M weighs 0.105 GB on disk.
- At Q4_K_M with a 4k context it needs ~1 GB (weights + KV cache + ~0.8 GB runtime overhead, ±15% with context length).
- Apple M3 Ultra (256GB): 256 GB unified, ~192 GB usable for model weights.
- Headroom: ~191 GB; it also fits FP16 for higher quality.

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

```sh
ollama run smollm2:135m
```

## Run SmolLM2 135M on other devices
- [Apple M1 (8GB)](https://localmodel.run/can-i-run/smollm2-135m/apple-m1-8gb)
- [8GB RAM Laptop (CPU/iGPU only)](https://localmodel.run/can-i-run/smollm2-135m/laptop-8gb)
- [iPhone 15 Pro](https://localmodel.run/can-i-run/smollm2-135m/iphone-15-pro)
- [iPhone 16](https://localmodel.run/can-i-run/smollm2-135m/iphone-16)
- [iPhone 16 Pro](https://localmodel.run/can-i-run/smollm2-135m/iphone-16-pro)
- [Generic Android Phone (8GB RAM)](https://localmodel.run/can-i-run/smollm2-135m/android-generic-8gb)

## Other models that run on Apple M3 Ultra (256GB)
- [Qwen3 235B A22B (235B)](https://localmodel.run/can-i-run/qwen3-235b-a22b/apple-m3-ultra-256gb)
- [gpt-oss 120B (117B)](https://localmodel.run/can-i-run/gpt-oss-120b/apple-m3-ultra-256gb)
- [Llama 4 Scout (109B)](https://localmodel.run/can-i-run/llama-4-scout/apple-m3-ultra-256gb)
- [Sarvam-105B (105B)](https://localmodel.run/can-i-run/sarvam-105b/apple-m3-ultra-256gb)
- [Qwen2.5 72B (72B)](https://localmodel.run/can-i-run/qwen2.5-72b/apple-m3-ultra-256gb)
- [Llama 3.3 70B (70B)](https://localmodel.run/can-i-run/llama-3.3-70b/apple-m3-ultra-256gb)

Estimate, not a guarantee. Sources: https://ollama.com/library/smollm2:135m, https://huggingface.co/bartowski/SmolLM2-135M-Instruct-GGUF, https://venturebeat.com/ai/ai-on-your-smartphone-hugging-faces-smollm2-brings-powerful-models-to-the-palm-of-your-hand.
More: https://localmodel.run/can-i-run/smollm2-135m/apple-m3-ultra-256gb