RealGuardrails: leaderboard

The model gets one of 14 realistic assistant system prompts with guardrails and a hand-written user message that complies with or conflicts with them; the number is the % of 239 cases judged as following the system prompt. Unlike prompt-injection tests, the user asks plainly, without adversarial tricks.

Metric: Handwritten guardrail test pass rate (%, higher is better). Source: arxiv.org. Saturation forecast: Estimated already saturated. 10 models tracked.

Top models

#ModelScoreOverall rank
1O3 Mini83.3#533
2Gemini 1.5 Flash (002)65.7#1464
3GPT-4o (2024-08-06)65.3#740
4GPT-4o Mini (2024-07-18)64.4#1510
5Gemini 1.5 Flash-8B (001)59#2331
6DeepSeek V350.2#716
7Llama 3.1 8B Instruct47.3#4246
8DeepSeek R146.9#473
9Llama 3 8B Instruct41.8#4612
10Llama 3.2 3B Instruct37.7#7147

No result here: #1 Claude Fable 5.2, #2 Gemini 4 Carbon, #5 Claude Opus 5.5.

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