LongFact Objects
LongFact is a benchmark for evaluating long-form factuality in large language models. It comprises 2,280 fact-seeking prompts spanning 38 topics, designed to test a model's ability to generate accurate, long-form responses. The benchmark uses SAFE (Search-Augmented Factuality Evaluator) to evaluate factual accuracy.
GPT-5 from OpenAI currently leads the LongFact Objects leaderboard with a score of 0.008 across 1 evaluated AI models.
GPT-5 leads with 0.8%.
Progress Over Time
Interactive timeline showing model performance evolution on LongFact Objects
LongFact Objects Leaderboard
| Context | Cost | License | ||||
|---|---|---|---|---|---|---|
| 1 | OpenAI | — | — | — |
FAQ
Common questions about LongFact Objects.
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