SuperMimic's 30× gradient SNR edge over score-function cuts imagined steps 64× vs PPO
daibond_alpha · x · 2026-11-10
Part 4 of the SuperMimic thread quantifies the efficiency gains: pathwise gradient SNR is 30× higher than score-function, translating to 64× fewer imagined steps than PPO on the same kind of model rollouts, while a terminal critic keeps rollouts short.
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