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AA-Omniscience Index

Paper

Progress Over Time

Interactive timeline showing model performance evolution on AA-Omniscience Index

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AA-Omniscience Index Leaderboard

1 models
ContextCostLicense
1
xAI
Grok 4.5New
xAI
—500K$2.00 / $6.00
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About this benchmark

What is AA-Omniscience Index?

AA-Omniscience Index is Artificial Analysis's knowledge-reliability metric. It rewards correct answers, penalizes hallucinations, and does not penalize abstention. Scores range from -100 to 100, where 0 means as many correct as incorrect answers.

AA-Omniscience Index is a text benchmark evaluating models on reasoning, science, and knowledge tasks. LLM Stats tracks 1 models on this benchmark, scored on a 0–200 scale. The current average is 126.0, with the leader at 126.0.

Compare leaders on the best AI for reasoning, best AI for science and best AI for knowledge leaderboards.

Current leaders

Grok 4.5 from xAI currently leads the AA-Omniscience Index leaderboard with a score of 126.000 across 1 evaluated AI models.

1Grok 4.5xAI126.000

FAQ

Common questions about the AA-Omniscience Index benchmark and leaderboard.

What is the AA-Omniscience Index benchmark?

AA-Omniscience Index is Artificial Analysis's knowledge-reliability metric. It rewards correct answers, penalizes hallucinations, and does not penalize abstention. Scores range from -100 to 100, where 0 means as many correct as incorrect answers.

What is the AA-Omniscience Index leaderboard?

The AA-Omniscience Index leaderboard ranks 1 AI models based on their performance on this benchmark. Currently, Grok 4.5 by xAI leads with a score of 126.000. The average score across all models is 126.000.

What is the highest AA-Omniscience Index score?

The highest AA-Omniscience Index score is 126.000, achieved by Grok 4.5 from xAI.

How many models are evaluated on AA-Omniscience Index?

1 models have been evaluated on the AA-Omniscience Index benchmark, with 0 verified results and 0 self-reported results.

Where can I find the AA-Omniscience Index paper?

The AA-Omniscience Index paper is available at https://artificialanalysis.ai. The paper details the methodology, dataset construction, and evaluation criteria.

What categories does AA-Omniscience Index cover?

AA-Omniscience Index is categorized under reasoning, science, and knowledge. The benchmark evaluates text models.

What's the difference between AA-Omniscience Index and OmniScience?

AA-Omniscience Index is a variant of OmniScience. See the OmniScience leaderboard for the broader benchmark and per-model comparison.

Which model offers the best value on AA-Omniscience Index?

Among models scoring within 10% of the leader, Grok 4.5 from xAI is the cheapest, at $2.00 per million input tokens with a score of 126.000.

How recent are the AA-Omniscience Index leaderboard results?

The AA-Omniscience Index leaderboard was last updated in July 2026 and currently includes 1 evaluated models.