FACTS Grounding
A benchmark evaluating language models' ability to generate factually accurate and well-grounded responses based on long-form input context, comprising 1,719 examples with documents up to 32k tokens requiring detailed responses that are fully grounded in provided documents
Gemini 2.5 Pro Preview 06-05 from Google currently leads the FACTS Grounding leaderboard with a score of 0.878 across 13 evaluated AI models.
Gemini 2.5 Pro Preview 06-05 leads with 87.8%, followed by Gemini 2.5 Flash at 85.3% and Gemini 2.5 Flash-Lite at 84.1%.
Progress Over Time
Interactive timeline showing model performance evolution on FACTS Grounding
FACTS Grounding Leaderboard
| Context | Cost | License | ||||
|---|---|---|---|---|---|---|
| 1 | — | — | — | |||
| 2 | Google | — | 1.0M | $0.30 / $2.50 | ||
| 3 | Google | — | — | — | ||
| 4 | Google | — | — | — | ||
| 4 | Google | — | — | — | ||
| 6 | Google | 12B | — | — | ||
| 7 | Google | 27B | — | — | ||
| 8 | Google | — | — | — | ||
| 9 | Google | 4B | — | — | ||
| 10 | Google | — | 1.0M | $0.50 / $3.00 | ||
| 11 |  Zhipu AI | — | 200K | $1.20 / $4.00 | ||
| 12 | Google | — | 1.0M | $0.25 / $1.50 | ||
| 13 | Google | 1B | — | — |
FAQ
Common questions about FACTS Grounding.
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