MTRAG-UN (RAG) - LLM Judge: leaderboard

Metric: reference-based LLM-judge score RB_llm (GPT-OSS-120B judge in place of MTRAG's GPT-4o-mini; GPT-OSS-120B is also a subject) (%) with the top 5 passages retrieved by Elser after query rewriting, on MTRAG-UN's 666 human-written conversation tasks (unanswerable, underspecified, non-standalone and clarification turns over six corpora); metrics follow MTRAG and are conditioned on answerability with an IDK judge; printed as fractions and shown times 100; higher is better. Source: arxiv.org. Saturation forecast: Not forecast. 13 models tracked.

Top models

#ModelScoreOverall rank
1GPT-OSS-120B65#330
2GPT-OSS-20B63#499
3Mistral Large 360#388
4Qwen 3 30B A3B60#488
5Qwen 3 8B58#667
6DeepSeek V358#312
7Phi-457#701
8Llama 4 Maverick Instruct57#439
9Llama 3.3 70B Instruct55#520
10Granite 4.0 H Small53#657
11DeepSeek R152#245

No result here: #3 Claude Opus 5.5, #5 GPT-6 Astra, #8 Claude Fable 5.1.

Interactive version: theaggregate.ai/benchmark?slug=mtrag-un-rag-llm-judge · How It Works · Data refreshed daily, snapshot 2026-10-11.