Humanity's Last Exam
- OpenAI
- Anthropic
Results
| Model | Score | Source | Human-verified |
|---|---|---|---|
| Claude Opus 5.522 Sep 2026 · Anthropic | 67.7% | Introducing Claude Opus 5.5max effort | Yes |
| GPT-6 Astra3 Sep 2026 · OpenAI | 57.2% | GPT-6 Astra: A new generation of intelligence | Yes |
Benchmark
lastexam.aiHigher is better