Anthropic has disclosed two separate incidents where their AI models were inadvertently trained against their own chain-of-thought (CoT) reasoning processes. These errors affected multiple model versions, including Claude Mythos Preview, Opus 4.6, and Sonnet 4.6, with one incident impacting approximately 8% of training episodes. Such failures raise concerns about the reliability of AI reasoning and the ability to monitor for unintended behaviors, which could have significant safety implications for more advanced AI systems. AI
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RANK_REASON The cluster discusses technical errors in AI model training processes reported by Anthropic, which are detailed in alignment research papers and system cards.
