IOLBench - Long Answer: leaderboard
Metric: LLM-Judge Score (%; 0-2 scale, 501 text problems). Source: arxiv.org. Saturation forecast: Around 2029. 9 models tracked.
Top models
| # | Model | Score |
|---|---|---|
| 1 | Gemini 2.5 Pro | 50.47 |
| 2 | Claude Opus 4 | 46.45 |
| 3 | Claude Sonnet 4 | 46.07 |
| 4 | GPT-5 | 41.91 |
| 5 | GPT-4o | 39.25 |
| 6 | GPT-4 | 37.7 |
| 7 | Gemini 2.5 Flash | 35.47 |
| 8 | Grok 4 | 32.91 |
| 9 | GPT-4o Mini | 31.17 |
Interactive version: theaggregate.ai/benchmark?slug=iolbench-long-answer · How It Works · Data refreshed daily, snapshot 2026-09-24.