Benchmark

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…

Modality
text
Categories
reasoning
Openness
unknown
Source
llm_stats
Reported scores
2

Reported scores

llm_stats

ModelOrganizationReported valueReportedEvidence
GPT-5OpenAI0.012025-08-07evidence
Grok-4.1xAI0.97032025-11-17evidence

Scores are partitioned by the source that reported them and are never merged into a single cross-source ranking, because the sources measure different things and say so.