AA-Omniscience Index

Name: AA-Omniscience Index Leaderboard — AI Model Scores
Creator: LLM Stats
License: https://llm-stats.com/legal/terms-of-service

Paper

Progress Over Time

Interactive timeline showing model performance evolution on AA-Omniscience Index

State-of-the-art frontier

Open

Proprietary

AA-Omniscience Index Leaderboard

2 models

				Context	Cost	License
1	Grok 4.5 xAI		—	500K	$2.00 / $6.00
2	LFM2.5-2.6B Liquid AI		3B	—	—

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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 knowledge, reasoning, and science tasks. LLM Stats tracks 2 models on this benchmark, scored on a 0–200 scale. The current average is 48.3, with the leader at 126.0.

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

Current leaders

Grok 4.5 from xAI currently leads the AA-Omniscience Index leaderboard with a score of 126.000 across 2 evaluated AI models.

Grok 4.5xAI126.000

LFM2.5-2.6BLiquid AI-29.500

FAQ

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

What is the AA-Omniscience Index benchmark?

What is the AA-Omniscience Index leaderboard?

The AA-Omniscience Index leaderboard ranks 2 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 48.250.

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?

2 models have been evaluated on the AA-Omniscience Index benchmark, with 0 verified results and 1 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 knowledge, reasoning, and science. 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.

What is the best open-source model on AA-Omniscience Index?

LFM2.5-2.6B by Liquid AI is the top-ranked open-source model on AA-Omniscience Index, with a score of -29.500 (rank #2).

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 August 2026 and currently includes 2 evaluated models.