Crux 复测：Astra 与 Fable 5.1 各拿 $1 万做研究，论文仍被原作者拒

Peter Kirgis @pkirgis原推发布于 2026.10.21

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We gave GPT-6 Astra and Claude Fable 5.1 open-ended AI research questions from unpublished papers, with a $10,000 budget each, and had the original authors grade the papers they produced. Compared to our first tests with Claude Opus 4.8 in July, we saw meaningful improvements in experimental design and resource management, but persistent limitations in creative problem solving, judgment, calibration, and communication; both papers were rejected by our experts. https://cruxevals.com/research-notes/crux-2-followup