November 2026 Claude Fable 5.2 Scores 65 on Artificial Analysis, Highest So Far (artificialanalysis.ai)

Anthropic has announced the release of Claude Fable 5.2 (Max, Default Fallback), which achieved a notable score of 65 on the Artificial Analysis Intelligence Index—significantly above the median score of 40 for comparable models. This new model presents a multimodal approach by supporting both text and image inputs while providing text outputs and a substantial context window of 1 million tokens, translating to around 1500 pages of text. However, the pricing at $8.00 per million input tokens and $40.00 per million output tokens positions it at the higher end of the market. The importance of Claude Fable 5.2 lies in its enhanced reasoning capabilities, which utilize extended thinking or chain-of-thought processes to tackle complex problems. Its performance, driven by generating 275 million tokens in evaluations (compared to a median of 72.8 million), indicates a robust capacity for understanding and processing extensive data sets. This development is significant for the AI/ML community as it sets a new standard for intelligence evaluation, challenging other models while also emphasizing the trade-off between powerful performance and high operational costs.