AI Biosecurity Controls

Anthropic cuts Fable 5.1 prices by 25% and launches two-tier safeguard system with Mythos 5.1

The saving comes off cache reads, so it lands unevenly across teams, and the model's most sensitive capability now reaches users through a credential issued by an access program, not a purchase order a budget holder can sign off alone. Both changes move the decision away from the budget holder.