Anthropic's Claude Fable 5.2 Beats GPT-6 Cyber in Multi-Stage Cyberattack Benchmark

Anthropic on Monday released Claude Fable 5.2 and Claude Mythos 5.2 models, which it said exhibit improvements in coding, reasoning, and vision. During pre-release training, the large language models (LLMs) helped its engineers "complete…
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Why it mattersAttackers can exploit a flaw in Claude's document-processing tool by creating a temporary file that Anthropic's AI assistant can access and run on a user's machine.