[Anthropic Launches Fable 5.1: Up to 75% Price Reduction, Enhanced Programming and Research Capabilities] According to NetEase Technology, Anthropic released the new version of its flagship AI model, Fable 5.1, on Tuesday. While significantly reducing certain usage costs, the update enhances programming and research capabilities. This move directly responds to price pressures from enterprise clients and reflects the increasingly fierce market competition among U.S. AI model providers. The core change in the new version lies in its pricing strategy adjustment: Anthropic has reduced fees for the model's reprocessing of previously handled information by 75%. The company stated that this will lead to a "significant reduction" in overall operational costs. Dianne Penn, the company's product management lead, pointed out that this process accounts for half or even more of token consumption in some complex, long tasks, making it one of the most frequently mentioned pain points in client feedback.