SimpleQA
SimpleQA evaluates factual accuracy on straightforward, unambiguous factual questions with short, verifiable answers. It specifically tests whether models provide correct factual information vs. hallucinating plausible-sounding but incorrect answers.
Metrics
Factual accuracy (%) on simple questions
Created By
OpenAI
Paper
View paper →Website
Visit website →Top Model Scores
| Rank | Model | Score | Date |
|---|---|---|---|
| 1 | GPT-5.2 | 52.8% | 2026-03 |
| 2 | Claude Opus 4.6 | 48.3% | 2026-02 |
| 3 | Gemini 3 Ultra | 46.7% | 2026-01 |
| 4 | Grok 4 | 43.1% | 2026-02 |
| 5 | Llama 4 405B | 38.9% | 2026-01 |
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