TestsBenchmarks · Knowledge
HLE Diamond
Accuracy on a curated, harder and cleaner subset of Humanity's Last Exam.
Measured by independent testersIndependent Reported by the makerVendor-reported
| Thinking levelSetting | |||||||
|---|---|---|---|---|---|---|---|
| 1 | GPT-6 Astra | OpenAI | 60.6% | Defaultgpt-6-astra | Independent testIndependentScale AI SEAL ↗ | — | 1 Oct 2026 |
| 2 | Claude Opus 5.5 | Anthropic | 55.0% | Defaultclaude-opus-5-5 | Independent testIndependentScale AI SEAL ↗ | — | 1 Oct 2026 |
| 3 | Claude Fable 5.1 | Anthropic | 51.3% | Defaultclaude-fable-5-1 | Independent testIndependentScale AI SEAL ↗ | — | 1 Oct 2026 |
| 4 | Claude Opus 5 | Anthropic | 38.6% | Defaultclaude-opus-5 | Independent testIndependentScale AI SEAL ↗ | — | 1 Oct 2026 |
| 5 | Gemini 3.8 Flash | Google (Gemini / DeepMind) | 34.3% | Defaultgemini-3.8-flash | Independent testIndependentScale AI SEAL ↗ | — | 1 Oct 2026 |
| 6 | GPT-6 Sol | OpenAI | 33.8% | Defaultgpt-6-sol | Independent testIndependentScale AI SEAL ↗ | — | 1 Oct 2026 |
| 7 | GPT-5.6 Sol | OpenAI | 31.2% | Defaultgpt-5.6-sol | Independent testIndependentScale AI SEAL ↗ | — | 1 Oct 2026 |
| 8 | Muse Spark 1.3 | Meta (Meta Superintelligence Labs, Muse) | 25.4% | Defaultmuse-spark-1.3 | Independent testIndependentScale AI SEAL ↗ | — | 1 Oct 2026 |
| 9 | Grok 4.7 | SpaceXAI (formerly xAI) | 23.4% | Defaultgrok-4.7 | Independent testIndependentScale AI SEAL ↗ | — | 1 Oct 2026 |
| 10 | Kimi K3 | Moonshot AI (Kimi) | 22.2% | Defaultkimi-k3 | Independent testIndependentScale AI SEAL ↗ | — | 1 Oct 2026 |
| 11 | GLM-5.3 | Z.ai (Zhipu) | 16.4% | Defaultglm-5.3 | Independent testIndependentScale AI SEAL ↗ | — | 1 Oct 2026 |
| 12 | DeepSeek V4 Pro (Preview, 0423) | DeepSeek | 13.4% | Defaultdeepseek-v4-pro | Independent testIndependentScale AI SEAL ↗ | — | 1 Oct 2026 |