FActScore
A fine-grained atomic evaluation metric for factual precision in long-form text generation that breaks generated text into atomic facts and computes the percentage supported by reliable knowledge sources, with automated assessment using retrieval and language models
2rows
scoreprimary metric
2026-05-06sampled
Metadata
Metrics
Score, Normalized Score
| Rank | Subject | Score | Model Match | Provenance | Sampled |
|---|---|---|---|---|---|
| 1 | Grok-4.1 | 0.97 | — | Self-reported | 2026-05-06 |
| 2 | GPT-5 | 0.01 |  GPT-5 openai-gpt-5 | Self-reported | 2026-05-06 |
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