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Apr 2, 2026 · Artificial Intelligence

Speculative Decoding Explained: Small Draft Model + One‑Shot Verification

The article details how speculative decoding—using a fast small model to draft tokens and a large model to verify them—overcomes the memory‑bandwidth bottleneck of autoregressive inference, introduces SSD’s self‑draft and tree‑verification stages, presents real‑world benchmark gains, and shows how to enable it in vLLM.