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LongFact-Objects hallucination rate
7
Total Models
3.41
Average Score
1.10 - 8.90
Score Range
1
Max Score Achievable
Top 10 Model Performance
7 models
Lower is better
Models Using This Benchmark(7)Lower is better
OpenAI(7 models)
GPT-4.1
openai
1.10%
GPT-5
openai
1.20%
GPT-5 mini
openai
1.30%
GPT-4.1 Mini
openai
1.80%
GPT-5 nano
openai
2.80%
o3
openai
6.80%
o4 Mini
openai
8.90%