Distilling the Thought, Watermarking the Answer: When Reasoning Models Finally Get Traceable
Opening — Why this matters now Large Language Models have learned to reason. Unfortunately, our watermarking techniques have not. As models like DeepSeek-R1 and Qwen3 increasingly rely on explicit or implicit chain-of-thought, traditional text watermarking has started to behave like a bull in a logic shop: detectable, yes — but at the cost of broken reasoning, degraded accuracy, and occasionally, outright nonsense. ...