[AI Agents Discover $4.6 Million Smart Contract Vulnerabilities in Anthropic Simulations] BlockBeats reports that on December 2, Anthropic's latest research revealed that AI Agents possess significant on-chain attack capabilities: in simulations of real-world smart contract exploits from 2020–2025, Claude Opus 4.5, Sonnet 4.5, and GPT-5 collectively reproduced vulnerabilities worth approximately $4.6 million. Additionally, while scanning 2,849 contracts with no known vulnerabilities, the two models uncovered two brand-new zero-day vulnerabilities and successfully simulated profits. The research indicates that the on-chain attack profits of AI have doubled approximately every 1.3 months over the past year, demonstrating fully autonomous and profitable exploit capabilities from a technical standpoint.