vLLM Adds Adaptive Verification for Draft Models Without a Confidence Head

What happened

Up until a month ago, adaptive verification in vLLM needed a drafter that shipped with a trained confidence head. Now it works with the draft models you already serve: MTP, EAGLE, DFlash, and DSpark checkpoints without a head. No retraining. The signal was already in the draft

The story so far

vLLM said its adaptive verification now works with existing MTP, EAGLE, DFlash, and DSpark draft-model checkpoints that lack a trained confidence head, without retraining. Previously, the feature required a drafter with a trained confidence head; the change lets users apply it to those existing checkpoints.

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