Researchers Test New Claude Models as Long-Horizon Research Assistants

chaitjo · x · 2026-11-10

Anthropic released Claude Fable 5.2 and Claude Mythos 5.2, pitched at the most daunting technical challenges, with improvements in coding, reasoning, and vision. Researcher ncfrey shared hands-on impressions: the release makes Claude feel like a very capable research assistant. A recommended exercise is handing the model an older paper or draft and asking it to reimplement or extend it — Mythos 5.2 excels at long-horizon research tasks. He also demonstrated prompting models to hypothesize about the function of vault particles.

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