Anthropic introduced Claude Fable 5.1 and Claude Mythos 5.1 as the same underlying model with different safeguard stacks. Fable 5.1 …
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Anthropic’s Frontier Red Team published research on August 13 about what happens when several AI agents meet in the same …
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Anthropic says it will watermark text produced by its models, including Claude, as part of complying with European transparency rules …