Anthropic released Claude Fable 5.1, an updated AI model offering improved performance in code generation, knowledge tasks, and complex problem-solving while reducing token consumption by 25–75% depending on use case. The low-token mode now matches high-token Fable 5 performance, making the model more cost-efficient for SMEs using AI APIs. Pricing remains at $10/50 per 1M tokens (input/output), but operational costs drop significantly with improved token efficiency—critical for cost-conscious businesses.