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Update iOS.md #361

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19 changes: 6 additions & 13 deletions docs/iOS.md
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# iOS
# Running LLaMA models on iOS

Open the iOS Llama Xcode project at
https://github.com/pytorch/executorch/tree/main/examples/demo-apps/apple_ios/LLaMA/LLaMA.xcodeproj
in Xcode and click Run. You will need to provide a provisioning
profile (similar to what's expected for any iOS dev).
Check out the [tutorial](https://pytorch.org/executorch/main/llm/llama-demo-ios.html) on how to build the iOS demo app running your
PyTorch models with [ExecuTorch](https://github.com/pytorch/executorch).

Once you can run the app on you device,
1 - connect the device to you Mac,
2 - copy the model and tokenizer.bin to the iOS Llama app
3 - select the tokenizer and model with the `(...)` control (bottom left of screen, to the left of the text entrybox)


Detailed step by step in conjunction with ET iOS build, to run on
simulator for iOS.
<a href="https://pytorch.org/executorch/main/_static/img/llama_ios_app.mp4">
<img src="https://pytorch.org/executorch/main/_static/img/llama_ios_app.png" width="600" alt="iOS app running a LlaMA model">
</a>