IOLBench - Long Answer: leaderboard
Long-answer olympiad linguistics problems, mostly translations (501 text problems), graded by an LLM judge on a 0 to 2 scale and reported as a percentage. Higher is better. Source: arxiv.org/abs/2501.04249.
Metric: LLM-Judge Score (%; 0-2 scale, 501 text problems). Source: arxiv.org. Saturation forecast: Around March 2028. 9 models tracked.
Top models
| # | Model | Score | Overall rank |
|---|---|---|---|
| 1 | Gemini 2.5 Pro | 50.47 | #161 |
| 2 | Claude Opus 4 | 46.45 | #172 |
| 3 | Claude Sonnet 4 | 46.07 | #209 |
| 4 | GPT-5 | 41.91 | #108 |
| 5 | GPT-4o | 39.25 | #358 |
| 6 | GPT-4 | 37.7 | #454 |
| 7 | Gemini 2.5 Flash | 35.47 | #255 |
| 8 | Grok 4 | 32.91 | #191 |
| 9 | GPT-4o Mini | 31.17 | #601 |
No result here: #3 Claude Opus 5.5, #5 GPT-6 Astra, #6 GPT-6.1 Sol.
Interactive version: theaggregate.ai/benchmark?slug=iolbench-long-answer · How It Works · Data refreshed daily, snapshot 2026-11-07.