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Running LLMs on-device means fighting two constraints simultaneously: memory and latency. The KV-cache — the buffer that stores past token representations so the model does not recompute them — is often the bottleneck on both fronts. A paper publishe...

Every production LLM deployment using speculative decoding is likely running a fixed speculation length of γ=4. That number comes from early benchmarks, it has been copy-pasted across blog posts and framework defaults, and almost nobody questions it....
