Harbor Adapters - GPQA Diamond (Terminus-2): leaderboard
Metric: Accuracy (%; 198 questions, mean of 3 trials). Source: arxiv.org. Saturation forecast: Estimated already saturated. 8 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | Gemini 3.1 Pro (Preview) | 95.3 |
| 2 | Gemini 3 Flash (Preview) | 89.6 |
| 3 | Claude Opus 4.6 | 84.3 |
| 4 | Claude Sonnet 4.6 | 82.3 |
| 5 | GPT-5 Mini | 78.5 |
| 6 | GPT-5.4 (Medium) | 77.8 |
| 7 | GPT-5 Nano | 60.8 |
| 8 | Claude Haiku 4.5 | 53.5 |
Interactive version: theaggregate.ai/benchmark?slug=harbor-adapters-gpqa-diamond-terminus-2 · How It Works · Data refreshed daily, snapshot 2026-09-25.