AIBullisharXiv – CS AI · 8h ago7/10
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Path-Lock Expert: Separating Reasoning Mode in Hybrid Thinking via Architecture-Level Separation
Researchers propose Path-Lock Expert (PLE), an architectural solution that separates reasoning and non-reasoning modes in hybrid-thinking language models by replacing single MLPs with two specialized experts. The approach significantly reduces reasoning leakage in non-reasoning mode while maintaining strong performance in reasoning tasks, suggesting that controllable hybrid thinking is fundamentally an architectural problem rather than a training problem.