Anthropic ships Claude Fable 5.2 and retakes the top LLM rank
Original title: [AINews] Fable 5.2 retakes World #1 LLM spot as $ANT IPO roadshow begins
Artificial Analysis ranks Fable 5.2 first at 65, ahead of Gemini 4 Carbon at 60.
Anthropic released Claude Fable 5.2 and Claude Mythos 5.2, describing both as a step above Opus 5.5 on nearly all evaluated capabilities. Pricing is $8 per million input tokens and $40 per million output tokens, 20% below Fable 5.1, though independent runs found higher per-task cost because the model uses more tokens. Default effort is Medium, data retention is required by default, and subscription access is limited. The same newsletter notes Anthropic’s IPO roadshow has started.
Unconfirmed: Launch capability claims and several headline benchmark figures are vendor-reported.
- Cache reads cost $0.20; 5-minute and 1-hour cache writes cost $10 and $16.
- Context is 1M tokens with text and image input and five effort levels.
- At max, cost per task is about $26.5, roughly 2.6 times Opus 5.5.
- Fable can consume only 50% of a weekly subscription limit.
- Zero data retention is limited to eligible enterprise customers.
- Vendors
- Anthropic
- AI models
- Claude Fable 5.2Claude Mythos 5.2
From the original article
14 min read at latent.space
November 9, 2026 — Claude Fable 5. 2 and Mythos 5. 2 arrive on Anthropic’s IPO roadshow day.
By swyx .ai · latent.space
A short excerpt; the article and its images belong to the publisher. Summary, key facts and assessment above are AI-written from the article and can be wrong.