On October 22, 2025, Baichuan Intelligence rolled out its evidence - based enhanced medical large - scale model, namely Baichuan - M2 Plus. At the same time, it upgraded its supporting application, Baixiaoying, and made its API available for use. According to evaluation results, the medical hallucination rate of M2 Plus is markedly lower than that of general large - scale models. Specifically, it's about three times lower than that of DeepSeek. Moreover, it surpasses the well - known U.S. medical product OpenEvidence, with a level of credibility on par with that of seasoned clinical doctors. (In English, “large model” is more commonly expressed as “large - scale model” in technical contexts. “Unveil” is a more vivid and commonly used verb for product releases compared to “release”. “Markedly” and “specifically” enhance the precision and readability of the description. “Well - known” is a more natural way to describe a popular product, and “on par with” is a more idiomatic phrase than “comparable to” in this context.)