OpenAI GPT-5.4 Launch - Humanity's Last Exam (no tools): leaderboard

The "Humanity's Last Exam (no tools)" subtask of OpenAI GPT-5.4 Launch. A benchmark result reported in the OpenAI GPT-5.4 launch announcement, as self-reported by the model developer.

Metric: Score (%). Source: openai.com. 4 models tracked.

Top models

#ModelScoreOverall rank
1GPT-5.4 Pro42.7#32
2GPT-5.439.8#79
3GPT-5.2 Pro36.6#61
4GPT-5.234.5#110

Interactive version: theaggregate.ai/benchmark?slug=openai-gpt-5-4-launch-humanity-s-last-exam-no-tools · How It Works · Data refreshed daily, snapshot 2026-10-20.