The 3 smartest AIs right now

Claude Fable 5 tops the Artificial Analysis Intelligence Index at ~60 — the highest score ever — and even Grok 4.5's leap only reached 4th at 54.

The top 3

  1. #1 Claude Fable 5: Anthropic's flagship holds #1 at ~59.9 — the highest score any model has ever posted on the index.
  2. #2 GPT-5.5: OpenAI's GPT-5.5 takes second, the top non-Anthropic model on the board.
  3. #3 Claude Opus 4.8: Opus 4.8 sits third — giving Anthropic two of the top three — just ahead of Grok 4.5's fourth-place 54.

Sources

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