RPCBench - Domain - MIND-small - Fact Fabrication: leaderboard

RPCBench tests proactive premise critique in recommendation requests. This series measures fact fabrication on the MIND-small subset (703 questions), using the same eleven-model, three-judge experiment as the headline paper. Published FFR fractions from the authors' per-model CSV are scaled once to Fact Fabrication Rate (%). Lower is better; domains and nested premise-error groups are related slices of the same experiment.

Metric: Fact Fabrication Rate (%). Source: github.com. Saturation forecast: Estimated already saturated. 11 models tracked.

Top models

#ModelScoreOverall rank
1Qwen 3.5 122B A10B0.71#186
2Qwen 3.5 35B A3B1.28#270
3Qwen 3.5 397B A17B1.56#155
4Qwen 3.5 Plus2.13#136
5GPT-5.54.13#34
6DeepSeek V4 Pro6.12#113
7DeepSeek V4 Flash8.68#156
8Gemini 3.1 Pro (Preview)8.82#66
9Claude Sonnet 4.612.8#97
10Llama 3.1 70B Instruct45.38#570
11Llama 3.1 8B Instruct52.92#1021

No result here: #3 Claude Opus 5.5, #5 GPT-6 Astra, #6 GPT-6.1 Sol.

Interactive version: theaggregate.ai/benchmark?slug=rpcbench-domain-mind-small-fact-fabrication · How It Works · Data refreshed daily, snapshot 2026-11-07.