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Claude Mythos 5.1: safer research access and lower AI costs
Sep 13, 20265 min read

Claude Mythos 5.1: safer research access and lower AI costs

Anthropic says its new Claude Fable 5.1 will cut typical token-billed costs by about 25%, with agent-style runs saving up to roughly 45%. Alongside that, the company is gating a higher-permission twin model, Claude Mythos 5.1, for trusted users in cybersecurity and the life sciences, while claiming a 60% drop in false-positive flags for benign […]

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