HLE-Diamond leaderboard
As of November 14, 2026, among the results listed here, Thinking Machines Inkling 2 Small has the highest reported HLE-Diamond score, 28.7%, published by Thinking Machines, ahead of Meta Muse Spark Open at 26.1%. 2 models have a HLE-Diamond result in our records.
Scores as the model makers published them, not re-run by us; each row links to its announcement.
Best reported score
28.7%
T Thinking Machines Inkling 2 Small
Reported by Thinking Machines, November 9, 2026
2 models ranked · 2 makers
| Rank | Model | Score | Setting | Reported by | Date |
|---|---|---|---|---|---|
| 1 | T Inkling 2 Small | 28.7% | Not published | Thinking Machines | November 9, 2026 (model release) |
| 2 | Muse Spark Open | 26.1% | xhigh; no tools | Meta | October 15, 2026 (model release) |
How much to trust these numbers
- Source
- Reported by the model makers themselves. Not re-run by LLMBenchmark or anyone independent.
- Settings
- Settings differ between makers. Check the Setting column before comparing two scores.
- Spread
- 28.7% to 26.1% across 2 models.
- Freshness
- Newest result published November 9, 2026; oldest October 15, 2026.
What HLE-Diamond measures
HLE-Diamond asks models to answer 1,000 questions split evenly between reasoning and knowledge; accuracy indicates how often their answers are correct. Source: Humanity's Last Exam