📄ArXiv AI•Mar 19, 2026Stalecollected in 15h

CRAFT: Hidden-State RL for Jailbreak Defense

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#alignment #jailbreak #latent-space #red-teamingcraftcraft qwen3-4b-thinking r1-distill-llama-8b ipo safekey

💡79% jailbreak resistance boost via hidden RL—key for safe reasoning LLMs.

⚡ 30-Second TL;DR

What Changed

Introduces CRAFT for safety-aware reasoning traces via hidden-state optimization

Why It Matters

Enhances LLM deployment safety by targeting reasoning-level vulnerabilities, not just outputs. Enables scalable alignment for open-weight reasoning models.

What To Do Next

Download arXiv:2603.17305 and fine-tune CRAFT on your reasoning LLM for jailbreak testing.

Who should care:Researchers & Academics

Key Points

•Introduces CRAFT for safety-aware reasoning traces via hidden-state optimization
•Integrates contrastive RL to create latent geometry separating safe/unsafe paths
•Theoretical proof eliminates superficial alignments as local optima
•Empirical wins: 79% reasoning safety, 87.7% response safety improvements
•Outperforms SOTA like IPO/SafeKey on safety benchmarks

📄Read original article on ArXiv AI

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