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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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%. These methods have been used to reduce the effectiveness of distillation attacks on Claude in recent months.

Key sources

SOURCEOct 13, 6:06 PMthe-decoder.com
SOURCE@anthropicaiOct 13, 6:58 AM“reducing the effectiveness of distillation attacks against Claude”x.com
SUPPORT@hesamationOct 13, 7:17 AM“requests to Moonshot’s Kimi models were secretly forwarded to Claude as part of its distillation efforts”x.com
SUPPORT@jaguaranalyticsOct 13, 8:02 AM“Reduced amount of data harvested by distillers by 90-99%”x.com
SUPPORT@edzitronOct 13, 10:11 AM“how much of Anthropic’s revenue was coming from distillation exactly?”x.com
SUPPORT@davidsacksOct 13, 10:30 AM“Anthropic, not the government, was in the best position to stop distillation of its own models”x.com
SUPPORT@kimmonismusOct 13, 4:12 PM“one network once ran more than 20,000 fake accounts at a time”x.com
SUPPORT@mark_kOct 13, 7:17 PM“removed tens of thousands of accounts, often within two hours of detecting a campaign”x.com

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