OneMillion-Bench (Web Search) - Expert Score: leaderboard
Metric: Expert score (%): per task, the weighted share of expert-written rubric points earned (rubric weights from -20 to 10, negative rubrics penalizing violations; each task clipped to 0-1), averaged over tasks on the 200-task Global set (Finance, Law, Healthcare, Industry and Natural Science, 40 tasks each) of OneMillion-Bench's expert-curated professional tasks, each model equipped with web-search tool calling (deep-research agents as they are); rubrics graded by an LLM judge; higher is better. Source: arxiv.org. Saturation forecast: Around May 2027. 19 models tracked.
Top models
| # | Model | Score | Overall rank |
|---|---|---|---|
| 1 | Claude Opus 4.6 (High) | 63 | #60 (Claude Opus 4.6) |
| 2 | GPT-5.4 (High) | 59.2 | #76 (GPT-5.4) |
| 3 | GPT-5.2 (High) | 56.9 | #105 (GPT-5.2) |
| 4 | Gemini 3 Pro (Preview) | 52.8 | #64 |
| 5 | Doubao-Seed-2-0-Pro-260215 (High) | 51.8 | |
| 6 | GPT-5.3 Codex (High) | 50.6 | #68 (GPT-5.3 Codex) |
| 7 | O3 Deep Research | 46.3 | #109 |
| 8 | Grok 4 | 45.9 | #169 |
| 9 | Sonar Deep Research | 42.3 | #191 |
| 10 | Kimi K2.5 (High) | 41.2 | #139 (Kimi K2.5) |
| 11 | GLM-5 | 41.1 | #137 |
| 12 | DeepSeek V3.2 Speciale | 38.6 | #125 |
| 13 | O4 Mini Deep Research | 37.7 | #219 |
| 14 | MiniMax-M2.1 | 33.9 | #283 |
| 15 | Step 3.5 Flash | 33 | #262 |
No result here: #3 Claude Opus 5.5, #5 GPT-6 Astra, #8 Claude Fable 5.1.
Interactive version: theaggregate.ai/benchmark?slug=onemillion-bench-web-search-expert-score · How It Works · Data refreshed daily, snapshot 2026-10-11.