Doubao has hit a remarkable milestone, with its daily active users (DAU) soaring past the 100 million mark. Among all ByteDance products that have ever reached a DAU of over 100 million, Doubao stands out for having the lowest user growth (UG) costs and market promotion expenses. Additionally, the product has showcased impressive user retention capabilities. Over the past two years, Doubao has adopted a relatively low-key strategy in promoting its AI products, steering clear of extensive advertising blitzes. In 2024, China witnessed ten major large-model products running a staggering total of over 6.25 million advertisements, with a combined expenditure of 1.5 billion yuan. Among them, Kimi pursued the most aggressive advertising approach. In the first half of 2025, Tencent Yuanbao significantly ramped up its promotional activities, with cumulative advertising spending nearing 6 billion yuan. By the end of the year, Alibaba rolled out its AI-to-consumer (AI to C) initiative, and products like Qianwen also embarked on aggressive marketing campaigns. In stark contrast, Doubao's investment in user acquisition is roughly one-third of that of Yuanbao and Qianwen. While witnessing substantial growth in its consumer user base, Doubao's large model MaaS (Model as a Service) has also made commendable progress in commercialization, surpassing expectations. As of December, the daily usage of Doubao's large model has exceeded 50 trillion tokens, securing the top spot in China and the third position globally. Moreover, Volcano Engine's public cloud large model service has captured nearly half of the Chinese market share.