29 Jul 2026
Claude's AES Attack Took a Week to Find, a Month to Verify
(01)Anthropic's Claude Mythos Preview found a 7-round AES attack in one week. Two researchers needed nearly a month to verify it. Why review is the real cost.
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Anthropic's Claude Mythos Preview found a 7-round AES attack in one week. Two researchers needed nearly a month to verify it. Why review is the real cost.
Andrej Karpathy released Karpathy Autoresearch — a framework where AI agents autonomously run LLM training experiments. 110+ runs in 12 hours on 8×H100.