{"id":2332,"date":"2026-09-08T08:20:55","date_gmt":"2026-09-08T08:20:55","guid":{"rendered":"https:\/\/techvisor.pro\/?p=2332"},"modified":"2026-09-08T08:20:55","modified_gmt":"2026-09-08T08:20:55","slug":"claude-fable-5-1-anthropics-new-model-is-45-cheaper","status":"publish","type":"post","link":"https:\/\/techvisor.pro\/en\/claude-fable-5-1-anthropics-new-model-is-45-cheaper\/","title":{"rendered":"Claude Fable 5.1: Anthropic’s new model is 45% cheaper"},"content":{"rendered":"

Anthropic has released Claude Fable 5.1 and Claude Mythos 5.1 \u2014 the next generation of models for coding, scientific research and cybersecurity. The main feature of Fable 5.1 is the same quality at a significantly lower price. We break down what has changed.<\/p>\n

Two Models, Different Levels of Access<\/h2>\n

Claude Fable 5.1 is available to a broad range of users immediately after release. Claude Mythos 5.1, a more powerful model with expanded capabilities in cybersecurity and biological research, remains restricted \u2014 only verified organizations have access through Anthropic\u2019s program.<\/p>\n

This is the same approach of separating a public and a restricted version that Anthropic used for the previous generation of models \u2014 Fable 5 and Mythos Preview.<\/p>\n

Main News: Up to 45% Cheaper<\/h2>\n

\"Main<\/p>\n

According to Anthropic, Fable 5.1 delivers the same or better performance compared with its predecessor at lower reasoning-effort settings, while reducing the cost of some highly agentic tasks by up to 45%.<\/p>\n

This continues the trend that began taking shape in the summer: in August, Anthropic had already positioned Claude Opus 5 at roughly half the price of Fable 5. Now the cost of the top-tier Fable lineup itself is also coming down.<\/p>\n

Why Price Has Become the Main Argument<\/h2>\n

\"Why<\/p>\n

According to the Financial Times, prices for leading American AI models have noticeably declined since mid-July. OpenAI significantly cut the price of GPT-5.6 Luna, and now Anthropic is following the same path with Fable 5.1.<\/p>\n

The reason is competition from cheaper Chinese models such as DeepSeek and Kimi from Moonshot AI, which are gaining users among companies trying to control their constantly growing token-processing costs. The AI model market is moving from a race purely over benchmarks to a race over cost of use.<\/p>\n

In Brief: The Key Points<\/h2>\n