Unverified50% confidenceFactExact time
In Dspark speculative decoding, the draft model guesses 5 tokens at a time, and a confidence head judges which are worth verifying, reducing the draft tokens verified per step from 5 to 3.2 to 4.4, saving 30% of verification overhead.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
10/31/2026
First Seen
Valid until: 1/29/2027
Sources
DeepSeek Open-Sources DeepInfer: The Cost-Saving Tricks Are There, the Scheduling Isn't
bilibili硬哥拆解10/31/2026
Related Entities
Related Claims
UnverifiedValidation perplexity measures the difficulty of next-token prediction on a held-out validation set; a lower value indicates the model fits the validation text better.71% similarUnverifiedThe core idea of speculative decoding is: use a smaller draft model to quickly generate multiple candidate tokens, then have the target large model verify in parallel in one pass whether these tokens are acceptable.68% similarUnverifiedDSpec通过引入微小的记忆头保持多步猜测的语义连贯性，并引入动态调度器只挑选值得检查的猜测进行验证66% similarUnverifiedFor speculative decoding, the model's official companion drafter should be preferred; if none exists, choose a third-party one but must measure the acceptance rate; the speculative token count should be tried starting from 2 to 4.66% similar
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