Natural Questions

Paper

Progress Over Time

Interactive timeline showing model performance evolution on Natural Questions

State-of-the-art frontier
Open
Proprietary

Natural Questions Leaderboard

7 models
ContextCostLicense
127B
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62B
68B
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About this benchmark

What is Natural Questions?

Natural Questions is a question answering dataset featuring real anonymized queries issued to Google search engine. It contains 307,373 training examples where annotators provide long answers (passages) and short answers (entities) from Wikipedia pages, or mark them as unanswerable.

Natural Questions is a text benchmark evaluating models on reasoning, search, and general tasks. LLM Stats tracks 7 models on this benchmark, scored on a 0–1 scale. The current average is 0.2, with the leader at 0.3.

Compare leaders on the best AI for reasoning, best AI for search and best AI for general leaderboards.

Current leaders

Gemma 2 27B from Google currently leads the Natural Questions leaderboard with a score of 0.345 across 7 evaluated AI models.

1Gemma 2 27BGoogle34.5%
2Mistral NeMo InstructMistral AI31.2%
3Gemma 2 9BGoogle29.2%

Source paper

Title
A BERT Baseline for the Natural Questions
Authors
Chris Alberti, Kenton Lee, Michael Collins
Published
Abstract

This technical note describes a new baseline for the Natural Questions. Our model is based on BERT and reduces the gap between the model F1 scores reported in the original dataset paper and the human upper bound by 30% and 50% relative for the long and short answer tasks respectively. This baseline has been submitted to the official NQ leaderboard at ai.google.com/research/NaturalQuestions. Code, preprocessed data and pretrained model are available at https://github.com/google-research/language/tree/master/language/question_answering/bert_joint.

FAQ

Common questions about the Natural Questions benchmark and leaderboard.

What is the Natural Questions benchmark?

Natural Questions is a question answering dataset featuring real anonymized queries issued to Google search engine. It contains 307,373 training examples where annotators provide long answers (passages) and short answers (entities) from Wikipedia pages, or mark them as unanswerable.

What is the Natural Questions leaderboard?

The Natural Questions leaderboard ranks 7 AI models based on their performance on this benchmark. Currently, Gemma 2 27B by Google leads with a score of 0.345. The average score across all models is 0.240.

What is the highest Natural Questions score?

The highest Natural Questions score is 0.345, achieved by Gemma 2 27B from Google.

How many models are evaluated on Natural Questions?

7 models have been evaluated on the Natural Questions benchmark, with 0 verified results and 7 self-reported results.

Where can I find the Natural Questions paper?

The Natural Questions paper is available at https://arxiv.org/abs/1901.08634. The paper details the methodology, dataset construction, and evaluation criteria.

What categories does Natural Questions cover?

Natural Questions is categorized under reasoning, search, and general. The benchmark evaluates text models.

What is the best open-source model on Natural Questions?

Gemma 2 27B by Google is the top-ranked open-source model on Natural Questions, with a score of 0.345 (rank #1).

How recent are the Natural Questions leaderboard results?

The Natural Questions leaderboard was last updated in July 2026 and currently includes 7 evaluated models.