In a comic strip, the author reveals the behind-the-scenes details of Tencent's advertising large model. Tencent's advertising platform achieved real-time online technology in 2014 and deep learning technology in 2015. In October 2021, Tencent initiated the construction of the next-generation advertising system, which includes the advertising large model and the Hunyuan large model. The advertising large model enhances click-through and conversion rates through precise ranking. The Hunyuan large model first comprehends the advertising content before passing it on to the advertising large model, and it has been used for generating advertising creatives. The article discloses that Tencent's advertising large model has parameters in the hundreds of billions.