Claude Fable 5.2 and Mythos 5.2 cement Anthropic’s AI lead just before its IPO

Matthias Bastian View the LinkedIn Profile of Matthias Bastian Nov 9, 2026 Anthropic Key Points Anthropic is releasing Claude Fable 5.2 and Mythos 5.2, two new flagship models built for the most demanding technical tasks. Anthropic says it deliberately prevented the models from gaining capabilities during training that could directly accelerate AI development. Fable 5.2 ranks first with 65 points on the Artificial Analysis Intelligence Index v5, five points ahead of Gemini 4 Carbon and 15 ahead of its predecessor, Fable 5.1. Peak quality averages $26.50 per task, about 2.6 times as much as Opus 5.5. At lower compute tiers, Fable 5.2 still outperforms every other model at every tier…