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Sunday, Sep 20, 2026
1 story1 Anthropic Claude Factors RSA 896 to Break Public Record AI Sep 19, 10:27 PM EDT 7/6
The public factoring record jumped three times in 16 days, concluding with a successful solve by Anthropic's Claude AI. The assistant identified the prime factors of the RSA-896 key using a cluster of 2,048 GPUs over a 10 day period. This milestone surpassed a previous benchmark of 862 bits and utilized established cryptanalytic techniques rather than a new mathematical breakthrough.
Cognition's Devin AI factored RSA-260 using $400,000 of B200 GPUs approximately two weeks prior to the latest solve. These recent AI-assisted factorization milestones have demonstrated a reduction in the time and compute required to crack specific RSA keys using known methods, sparking a debate on the current cost of encryption cracking.