# Can I run Qwen2.5 0.5B on iPhone 16 Pro?

> **Yes, it runs.** Runs at Q4_K_M using ~1.5 GB of ~4.5 GB usable. You have room for FP16 for higher quality.

Last validated: 2026-06-15.

## Memory math
- Qwen2.5 0.5B: 0.494B; Q4_K_M weighs 0.491 GB on disk.
- At Q4_K_M with a 4k context it needs ~1.5 GB (weights + KV cache + ~0.8 GB runtime overhead, ±15% with context length).
- iPhone 16 Pro: 8 GB unified, ~4.5 GB usable for model weights.
- Headroom: ~3 GB; it also fits FP16 for higher quality.

## How to run
Recommended quant: Q4_K_M. Best tool on iOS: Apple Foundation Models.

## Run Qwen2.5 0.5B on other devices
- [Apple M1 (8GB)](https://localmodel.run/can-i-run/qwen2.5-0.5b/apple-m1-8gb)
- [8GB RAM Laptop (CPU/iGPU only)](https://localmodel.run/can-i-run/qwen2.5-0.5b/laptop-8gb)
- [iPhone 15 Pro](https://localmodel.run/can-i-run/qwen2.5-0.5b/iphone-15-pro)
- [iPhone 16](https://localmodel.run/can-i-run/qwen2.5-0.5b/iphone-16)
- [Generic Android Phone (8GB RAM)](https://localmodel.run/can-i-run/qwen2.5-0.5b/android-generic-8gb)
- [iPhone 17](https://localmodel.run/can-i-run/qwen2.5-0.5b/iphone-17)

## Other models that run on iPhone 16 Pro
- [Gemma 3 4B (4B)](https://localmodel.run/can-i-run/gemma-3-4b/iphone-16-pro)
- [Qwen3 4B (4B)](https://localmodel.run/can-i-run/qwen3-4b/iphone-16-pro)
- [Phi-3.5-mini 3.8B (3.82B)](https://localmodel.run/can-i-run/phi-3.5-mini/iphone-16-pro)
- [Phi-4-mini 3.8B (3.8B)](https://localmodel.run/can-i-run/phi-4-mini-3.8b/iphone-16-pro)
- [Qwen2.5-VL 3B (3.75B)](https://localmodel.run/can-i-run/qwen2.5-vl-3b/iphone-16-pro)
- [Qwen2.5 3B (3.09B)](https://localmodel.run/can-i-run/qwen2.5-3b/iphone-16-pro)

Estimate, not a guarantee. Sources: https://ollama.com/library/qwen2.5:0.5b, https://huggingface.co/Qwen/Qwen2.5-0.5B-Instruct-GGUF, https://qwenlm.github.io/blog/qwen2.5/.
More: https://localmodel.run/can-i-run/qwen2.5-0.5b/iphone-16-pro