Joint belief-decision training gains are fragile without matched eval formats

JessicaHullman · x · 2026-10-23

Thread follow-up: joint training helps both components but gains are fragile — ½ belief + ½ decision training holds across separate and two-turn eval formats, while belief+alignment does well mostly when eval matches training (two-turn).

Related event: Northwestern paper decomposes LLM decision failures into belief loss and optimization residual(10 posts)→

Original post →

More from Research

Research channel →