Google Carbon Report - FACTS Grounding - Factuality: leaderboard
Google DeepMind Carbon safety report, Figure 5.14. Public FACTS Grounding; long-form responses supported by supplied documents up to 32K tokens. No search grounding. Metric: Factuality score (%). Higher is better. Source: https://storage.googleapis.com/deepmind-media/gemini/gemini_4_carbon_safety_report.pdf#page=76
Metric: Factuality score (%). Source: storage.googleapis.com. Saturation forecast: Around February 2027. 3 models tracked.
Top models
| # | Model | Score | Overall rank |
|---|---|---|---|
| 1 | Gemini 4 Carbon | 83.2 | #2 |
| 2 | Gemini 4 Argon | 79 | #11 |
| 3 | Gemini 3.8 Flash | 74 | #36 |
No result here: #1 Claude Fable 5.2, #5 Claude Opus 5.5, #6 GPT-6 Astra.
Interactive version: theaggregate.ai/benchmark?slug=google-carbon-report-facts-grounding-factuality · How It Works · Data refreshed daily, snapshot 2026-11-12.