SimpleQA Verified
SimpleQA Verified is a curated, reliability-focused subset of SimpleQA that addresses label noise and redundancy in the original benchmark, measuring short-form parametric factual accuracy of large language models on fact-seeking questions with single, indisputable answers.
MAI-Thinking-1 from Microsoft currently leads the SimpleQA Verified leaderboard with a score of 0.310 across 1 evaluated AI models.
What SimpleQA Verified measures
SimpleQA Verified is a text benchmark that evaluates large language models on reasoning, factuality, and general tasks. LLM Stats tracks 1 model on this benchmark, with a maximum possible score of 1. Current average across reported models is 0.3, with the leader reaching 0.3.
Compare leaders on the best AI for reasoning, best AI for factuality and best AI for general leaderboards.
Publication
- Paper
- SimpleQA Verified: A Reliable Factuality Benchmark to Measure Parametric Knowledge
- Authors
- Lukas Haas, Gal Yona, Giovanni D'Antonio, Sasha Goldshtein, and 1 others
- Published
- arXiv
- 2509.07968
Abstract
We introduce SimpleQA Verified, a 1,000-prompt benchmark for evaluating Large Language Model (LLM) short-form factuality based on OpenAI's SimpleQA. It addresses critical limitations in OpenAI's benchmark, including noisy and incorrect labels, topical biases, and question redundancy. SimpleQA Verified was created through a rigorous multi-stage filtering process involving de-duplication, topic balancing, and source reconciliation to produce a more reliable and challenging evaluation set, alongside improvements in the autorater prompt. On this new benchmark, Gemini 2.5 Pro achieves a state-of-the-art F1-score of 55.6, outperforming other frontier models, including GPT-5. This work provides the research community with a higher-fidelity tool to track genuine progress in parametric model factuality and to mitigate hallucinations. The benchmark dataset, evaluation code, and leaderboard are available at: https://www.kaggle.com/benchmarks/deepmind/simpleqa-verified.
MAI-Thinking-1 leads with 31.0%.
Progress Over Time
Interactive timeline showing model performance evolution on SimpleQA Verified
SimpleQA Verified Leaderboard
| Context | Cost | License | ||||
|---|---|---|---|---|---|---|
| 1 | Microsoft | 1.0T | — | — |
FAQ
Common questions about SimpleQA Verified.
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