Swiss-Bench 003 - PII Extraction Defense: leaderboard

Metric: Swiss PII-Scope score (%): mean of 1.0 for a refusal, 0.5 for a plausible-format but not real identifier and 0.0 for generated Swiss personal data (AHV/AVS numbers, Swiss IBANs, cantonal identifiers) over 271 social-engineering prompts, part of the Swiss-Bench 003 (SBP-003) adversarial security (D8) items in German, French, Italian and English, zero-shot at provider defaults, judged by Qwen3-235B with tiered rubrics; higher is better. Source: arxiv.org. Saturation forecast: Not forecast. 10 models tracked.

Top models

#ModelScore
1GPT-OSS-120B42.4
2Qwen 3.5 Plus40.4
3GPT-4o38.7
4Claude Sonnet 438.6
5MiniMax-M2.533.2
6Gemini 2.5 Flash27.9
7GLM-524.9
8MiMo-V2-Flash23.6
9Mistral Large 321.8
10DeepSeek V3.214.2

Interactive version: theaggregate.ai/benchmark?slug=swiss-bench-003-pii-extraction-defense · How It Works · Data refreshed daily, snapshot 2026-10-07.