RPCBench - Error Group - Boundary-Violating Premise - Fact Fabrication: leaderboard

RPCBench tests proactive premise critique in recommendation requests. This series measures fact fabrication on the Boundary-Violating Premise subset (436 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 397B A17B0#155
2Qwen 3.5 Plus0#136
3GPT-5.50.23#34
4Qwen 3.5 122B A10B0.23#186
5Qwen 3.5 35B A3B1.38#270
6Claude Sonnet 4.64.82#97
7Gemini 3.1 Pro (Preview)5.5#66
8DeepSeek V4 Pro7.57#113
9DeepSeek V4 Flash8.94#156
10Llama 3.1 70B Instruct18.35#570
11Llama 3.1 8B Instruct25.69#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-error-group-boundary-violating-premise-fact-fabrication · How It Works · Data refreshed daily, snapshot 2026-11-07.