Why it matters

Core ML shapes Apple platform LLM. Understanding shapes iOS / macOS.

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The architecture

Convert model to Core ML format (mlpackage).

ANE + GPU + CPU dispatch.

Quantization.

Core ML stackConvert modelcoremltoolsDispatchANE + GPU + CPUOptimizedfor Apple platformcoremltools converts from PyTorch; Apple Intelligence uses Core ML for on-device
Core ML.
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How it works end to end

coremltools for conversion.

Precision: FP16 / int8 / int4.

Stateful models for KV cache.

Apple Intelligence integration.