Lumen-bench - Neutral System Prompt: leaderboard

Lumen-bench harmful tool-action rate on the half of the trials run with a neutral system prompt, without the ethics instruction the other half receive. It shows conduct when nobody reminds the model to behave.

Metric: Harmful tool-action rate (%, lower is better). Source: arxiv.org. 30 models tracked.

Top models

#ModelScoreOverall rank
1Gemini 3.1 Pro (Preview)0#94
2GPT-5.40#123
3Claude Haiku 4.50#568
4GPT-5 Mini (2025-08-07)0.06#343
5MiniMax-M2.70.12#518
6Qwen 3.5 27B0.37#359
7Gemma 4 31B (IT)0.46#342
8DeepSeek V3.20.56#406
9Qwen 3.5 397B A17B0.68#246
10Gemma 4 26B A4B (IT)0.77#549
11Qwen 3.5 35B A3B1.02#482
12GPT-OSS-120B1.05#700
13GPT-OSS-20B1.64#1147
14GPT-4.12.84#495
15Gemini 3.1 Flash Lite (Preview)4.48#418

Interactive version: theaggregate.ai/benchmark?slug=lumen-bench-neutral-system-prompt · How It Works · Data refreshed daily, snapshot 2026-11-13.