Products & ServicesEvent: September 2, 2026
Anthropic released Claude Fable 5.1 and Mythos 5.1 models with a 75% discount on cache reads.
Published
Signal category
Products & Services
Quote
“Anthropic Claude Fable 5.1 and Mythos 5.1 are finally out”
— Nick Carmont|Anthropic team
Company
Anthropic
Anthropic is an AI safety and research company working to build reliable, interpretable, and steerable AI systems.
- Industry
- Research Services
- Company size
- 5,998 employees
We're an AI research company that builds reliable, interpretable, and steerable AI systems. Our first product is Claude, an AI assistant for tasks at any scale. Our research interests span multiple areas including natural language, human feedback, scaling laws, reinforcement learning, code generation, and interpretability.