---
title: PAIR JBB Attacker Study
emoji: 🛡️
colorFrom: pink
colorTo: purple
sdk: static
pinned: false
---

PAIR (Prompt Automatic Iterative Refinement) attacker-role study on the full JailbreakBench JBB-Behaviors set (100 behaviors, 10 harm categories, 3 seeds). Three Anthropic tiers put in the attacker seat against a fixed gpt-4o target, gpt-4o-mini loop judge, and StrongREJECT (gpt-4o) scorer. Interactive Inspect log-viewer bundle of all three runs (900 episodes total). Run 2026-07-28.

Companion report: https://kirby44.github.io/artifacts/pair-jbb-attacker-study.html

Note: these logs contain adversarial jailbreak transcripts, including the target model's successful harmful completions.