Astra still rules high-complexity verifiable tasks two months on, Fable 5.2 wins interactive work
JoshPurtell · x · 2026-11-11
Josh Purtell shares a cost/reward Pareto frontier analysis on a highly-verifiable autoresearch task, where starred models sit on the frontier. He finds Astra "shockingly good" at high-complexity verifiable tasks — still the king two months after release — while Fable 5.2 is quite strong at interactive, non-verifiable work. He speculates Astra may simply be a bigger model.
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