Training a specialist LLM on your phone: forward-only optimization with block-spectral coordinates
ResearchSource:arXiv
User-specific tasks don't need frontier-model capability, but a phone's memory limits block local training. A new method gets a specialist LLM in forward-only mode (no backpropagation) using block-spectral coordinates: data stays on the device, and the model adapts to the tasks that actually matter. A step toward personalized AI that never leaves the phone.
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