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Anyone know how hot an iPhone gets running the Neural Engine flat out for 10 minutes?
The neural engine is optimized for energy efficiency, and the GPU is optimized for performance.

You're going to get much better battery life and much less heat running on the neural engine.

Hi. Could anyone share any recommendations (hopefully with actual links) for App Store apps to try running such local models? I’m not really interested in side-loading since it currently seems (to me) more of an hassle than it’s worth.

App Store search is broken in a sense that there might be so many apps claiming to be local but once you read reviews, it’s just another scam where it’s it’s usually sending your query to remote server.

I'm the dev behind the Private LLM app, which was the first on-device LLM app on the App Store. Don't download it yet. I'm currently finalizing a brand new v2 rewrite which can run models that the copycat app (locally) cannot run, like Bonsai 2 27B, Gemma 4 12B etc.

https://x.com/private_llm/status/2101769928252473488

Thanks! All the best for your rewrite and definitely will check it out once it launches!
Not Qwen, Bonsai. Although it is based on Qwen, and achieves similar scores, it is not the "full" Qwen.

Last I remember, when trying to run a model above 1-2 GB on iOS, it would refuse to do so, at least from Locally AI. iOS only allows apps to use about 1-2 GB of RAM before being killed. Though using their Neural APIs might bypass this.