Models / GPT-5.4 Pro

OpenAI

GPT-5.4 Pro

2 published results from 1 source. Each card shows where the number comes from and what it does not measure. Results are never combined into one score.

Provider
OpenAI
Sources
1
Our benchmarks
0
Price
Not yet published

Reported by others

Reported by Vectara Hallucination Leaderboard
100.0%
Answer rate · rank 1 of 108
Unit
% of documents, higher is better
Configuration
GPT-5.4 Pro
Measured
22 Sep 2026
Not shown
Not a quality score: a low rate usually means content filters were triggered, and hallucination rates are measured on answered documents only.
Reported by Vectara Hallucination Leaderboard
8.3%
Hallucination rate · rank 42 of 108
Unit
% of summaries, lower is better
Configuration
GPT-5.4 Pro
Measured
22 Sep 2026
Not shown
Not errors in open questions or other tasks: only summarisation, judged by Vectara's own model (HHEM-2.3), not by people, on news-style documents rather than your data.