Claude Fable 5.2 is out — what to ask it first

🧠 Claude Fable 5.2 is out — what to ask it first Fable 5.2 is the most powerful Claude model available to the public, released on November 9. It has a "twin," Mythos 5.2: it's the same model but with fewer restrictions, and it's only offered to vetted companies. What's new: responds up to 30% faster refuses harmless requests about half as often according to Anthropic, it solved two open problems in black hole physics, and agents running on it spent 30 hours rewriting the proof of Fermat's theorem so a computer can verify it ⚠️ The catch: on the Pro plan, Fable can eat up to half of your weekly limit. Anthropic itself recommends Opus 5.5 for everyday tasks and keeping Fable for the hardest ones. This week, paid subscribers are getting extra limit resets — a great time to try it. What to ask Fable (copy and fill in your own details): "Here's my project: [description]. Find 5 weak spots I haven't thought of and suggest how to test each one within a week." "Review this contract as a lawyer and as an accountant. Where are the risks for me? Explain in plain language" + file. "Here are my expenses for the past 3 months: [table]. Find where I'm losing money and calculate how much I'd save over a year." "Make a plan to learn [skill] in 30 days at one hour a day, with a progress check once a week." "Explain [complex topic] first as if I were 12, then as if I were a specialist, and then ask me 3 questions to check my understanding." Tip: give the task to Opus first. If the answer is weak, then use Fable. That way your limit will last longer. Forward this to a friend who lives in Claude 🙂