Claude Fable 5.2 cracks Fermat in 30 hours

🔥 What happened Anthropic released Claude Fable 5.2 and Mythos 5.2. The model formalized Fermat's Last Theorem in 30 hours, designed three working electronic devices from scratch, and solved two open problems in black hole physics. 💡 Why it matters Fable 5.2 is 30% faster and cheaper than its predecessor: $8 per million input tokens, $40 per million output tokens. Fast mode doubles the price but speeds up token generation by 2.5x. On FrontierCode 2.0, it matches Opus 5.5 at roughly half the cost per task. ⚡ Our take Anthropic is positioning Fable as the "Advisor" for the hardest problems – a smart move against OpenAI and Google. If you don't jump on the advisor bandwagon now, you'll pay for it later.