Time to REFLECT: leaderboard

Deep research agents increasingly automate complex information-seeking tasks, producing evidence-grounded reports via multi-step reasoning, tool use, and synthesis. Their growing role demands scalable, reliable evaluation, positioning LLM-as-judge as a supervision paradigm for assessing factual accuracy, evidence use, and reasoning quality. Yet the reliability of these judges for deep research age

Metric: Overall (Report Quality) (self-reported). Source: benchmarklist.com. Saturation forecast: Around August 2027. 14 models tracked.

Top models

#ModelScoreOverall rank
1GPT-5.3 Codex47.5#69
2GPT-OSS-120B46.5#341
3GPT-5 Mini43.5#186
4Qwen 3 32B39.5#443
5GPT-5.438#79
6Claude Opus 4.735#49
7Gemini 3.1 Pro (Preview)32.5#58
8Claude Haiku 4.532.5#280
9Qwen 3 235B A22B27#313
10Gemini 2.5 Flash24.5#245
11Gemma 3 27B20#607
12Qwen 3 8B14.5#674
13Llama 3.1 70B9.5#592
14Gemini 2.0 Flash4.5#342

No result here: #3 Claude Opus 5.5, #6 GPT-6 Astra, #7 GPT-6.1 Sol.

Interactive version: theaggregate.ai/benchmark?slug=time-to-reflect · How It Works · Data refreshed daily, snapshot 2026-10-20.