Anthropic has cut a Fable 5.1 cache hit to just $0.25 on input, down from $1.00 for Fable 5. That's also just 2.5% of Fable's ...

Anthropic launches Claude Fable 5.1 and Mythos 5.1 for coding and research, cutting costs up to 45% and tightening safety ...

Fable 5.1 arrives with lower prices and tighter safeguards, days after reports of AI agents going rogue during security tests.

Teresa Carlson, the AI developer’s new head of government affairs, said Fable 5.1 is currently available on its government ...

I put Fable 5.1 through its paces after its big comeback. The upgrades are impressive, but my subscription is staying right ...

Anthropic always talks about how incredible Claude Fable and Claude Mythos are, and marketing is the biggest reason for the ...

Anthropic’s Fable 5.1 keeps headline prices flat but cuts cache reads 75%, making agentic AI cheaper and potentially driving ...

Fable 5.1 and its restricted sibling Mythos 5.1 arrive three months after export controls forced Anthropic to pull Fable 5 ...

Fable 5.1 leads in external benchmarks, while Mythos 5.1 is designed to handle more cyber tasks with loosened safety ...

Lambda, the startup with which Anthropic inked the deal, operates an AI-optimized public cloud. The platform enables ...

Anthropic launched Claude Fable 5.1 with doubled science scores and a new block on AI distillation. Can it stop copycats?

Anthropic has announced Enterprise Frontier Safeguards (EFS), an enterprise architecture enabling organizations in regulated ...