Anthropic: AI Agents Identify $4.6M Vulnerabilities in Real Contracts

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As per Chainthink, Anthropic released a report stating that its researchers tested Claude Opus 4.5, Claude Sonnet 4.5, and GPT-5 models on the SCONE-bench benchmark, which includes 405 real-world attacked contracts from 2020 to 2025. The models identified exploitable vulnerabilities worth approximately $4.6 million in contracts attacked after March 2025. Additionally, in simulated tests on 2,849 recently deployed contracts with no known vulnerabilities, Sonnet 4.5 and GPT-5 each discovered two new zero-day vulnerabilities, potentially causing $3,694 in losses, with GPT-5's API cost amounting to $3,476.

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