Anthropic launches Claude Fable 5.1 and says it’s up to 45 percent cheaper for agentic work

Anthropic says Claude Fable 5.1 improves on Fable 5 while typically costing about 25% less, and up to 45% less for complex agentic tasks. The company also says the new models address customer concerns around pricing, data retention, and overly cautious safeguards, with early users praising coding strength and efficiency.

The launch signals that frontier AI competition is shifting from raw capability toward cost efficiency and deployability in real workflows. Lower cached-data pricing could make long-running agents and coding assistants more economical, pressuring rivals to reduce inference costs while improving enterprise controls.