Unverified50% confidenceFactExact time
The parallel verification mechanism of speculative decoding guarantees that the final output sequence distribution is exactly identical to sampling token by token from the target model alone, so it is lossless acceleration.
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10/17/2026
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VerifiedSpeculative decoding's rejection-sampling-based verification algorithm ensures that the output distribution is exactly equivalent to—rather than merely an approximation of—running the main model alone.79% similarUnverifiedSpeculative decoding is a lossless acceleration technique whose output is mathematically fully equivalent to that of the original target model, because all tokens have been verified by the large model.76% similarVerifiedDeterministic programs necessarily produce the same output for the same input, with behavior that is fully predictable, testable, and debuggable.75% similarUnverifiedDeterministic verification refers to a checking method that always gives the same judgment result for the same input, not relying on probability, model weights, or context, and therefore can be audited, reproduced, and formally reasoned about.74% similarUnverifiedPointwise verification scores each generated result independently, does not depend on other samples, and its output can be used directly as a reward, but absolute scores are hard to calibrate and the model easily learns to game the score.73% similar
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