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hardNewSarvam AIModalBaseten

A parallel drafter proposes a whole draft block in one pass. How does that change the cost model and best draft length?

When drafting eight tokens costs the same as drafting one, the old reason to keep drafts short disappears and a new limit takes its place. The answer rebuilds the speedup formula for block drafters, finds where the best length lands at four batch sizes, and says which vLLM runner each method needs.

Updated Oct 2026 · Worked answers on inference mechanisms, with calculations, implementation details, and follow-up questions.

When drafting eight tokens costs the same as drafting one, the old reason to keep drafts short disappears and a new limit takes its place. The answer rebuilds the speedup formula for block drafters, finds where the best length lands at four batch sizes, and says which vLLM runner each method needs.

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