【Tech 24H】Alibaba Cloud's Tongyi team released Qwen3Guard on September 28, a guardrail model specifically designed for security protection. Built on the Qwen3 foundation, this model aims to efficiently identify potential risks in user inputs and model-generated responses, outputting fine-grained risk levels and classification labels. Qwen3Guard offers two versions: a generative version for offline dataset security labeling and a streaming detection version for real-time streaming security detection, significantly enhancing the security response efficiency of online services.