baselabs unpacks OPSD post-training research: hinted-teacher bias hurts long-horizon learning
JoshPurtell · x · 2026-11-07
baselabs published a weekly research unpack on OPSD and its variants, a popular post-training research area in 2026. While crediting the original papers for on-policy learning and dense feedback, they argue the bias injected by a hinted teacher is incongruent with long-horizon continual learning, and share their own attempted fixes and observations alongside a review of the literature.
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