Anthropic’s new safeguards cut AI distillation attacks on Claude models by 90-99%

Anthropic / Wikimedia Commons (Public domain) Anthropic, the developer of the Claude AI models, announced that its new defensive measures have significantly reduced the impact of AI distillation attacks. According to a report by Reuters, the safeguards have made it substantially more difficult to extract reasoning tokens from Claude models, with improvements reducing data harvesting by as much as 90% to 99%. The recent measures are implemented in the Claude 5-series models, including Fable 5.1, Opus 5.5, and Sonnet 5.5, and have resulted in the banning of tens of thousands of accounts linked to attack campaigns. This development could enhance Claude’s competitiveness in the AI model rankings. Key Takeaways Anthropic’s new safeguards appear to have effectively reduced AI distillation attacks on Claude models. The measures reportedly cut data extraction by 90% to 99%, indicating a substantial improvement in security. Market pricing suggests this development may support a YES outcome for Anthropic’s AI ranking. What to Watch Markets will be closely observing Anthropic’s performance in upcoming AI model rankings, which could be influenced by these enhanced security measures. Key actors...