Anthropic reports 90-99% reduction in distillation attacks

Anthropic states that new measures, including preserved thinking in Fable 5.1 and Opus 5.5, have reduced data harvesting via distillation attacks by 90% to 99%.

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2026-10-13 03:45 · Techmeme
Anthropic says new measures like preserved thinking in Fable 5.1 and Opus 5.5 have reduced data harvesting through distillation attacks by about 90% to 99% (Anthropic)

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