First of all, their schools are different. The Chronicle of Bailuyuan is a non-fiction work, most of which are based on real events or characters, while Bailuyuan is a novel. Although it is also adapted from reality, the content and characters are fictional.
Secondly, their language styles and reading experiences are also different. The language of the Chronicle of Bailuyuan is more vivid and simple, which makes people feel familiar, while Bailuyuan uses more literary skills and rhetorical devices, which may require readers to have higher literary appreciation ability.
Finally, their contents are different. The Chronicle of Bailuyuan mainly focuses on the stories of human feelings and characters in Bailuyuan, while Bailuyuan has expanded on this basis, including more stories and characters, as well as the author's memory and understanding of Bailuyuan.
Generally speaking, although there are many similarities between Bailuyuan Chronicle and Bailuyuan, there are also many obvious differences. Readers can choose to read according to their own interests and needs.