Smartest LLMs

Match · Updated July 2026

The smartest LLM is Claude Opus 5, scoring 60.7 on the Artificial Analysis Intelligence Index. Claude Fable 5 (59.9) and Claude Fable 5 (batch) (59.9) round out the top three.

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The smartest AI models ranked by the Artificial Analysis Intelligence Index — a composite of reasoning, knowledge, math and science benchmarks. These are the most intelligent large language models available today.

Frequently asked

What is the smartest LLM?

The smartest LLM is Claude Opus 5, scoring 60.7 on the Artificial Analysis Intelligence Index. Claude Fable 5 (59.9) and Claude Fable 5 (batch) (59.9) round out the top three.

What is the smartest AI model right now?

The smartest AI model is Claude Opus 5, scoring 60.7 on the Artificial Analysis Intelligence Index. Claude Fable 5 (59.9) and Claude Fable 5 (batch) (59.9) round out the top three.

What's a good alternative to Claude Opus 5?

Claude Fable 5 (59.9) is the closest alternative on this metric, followed by Claude Fable 5 (batch) (59.9). See the full ranking above for the tradeoffs.

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