Is Jingye Si a poem in ancient style or modern style?

Li Bai's "Silent Night Thoughts" is a five-character ancient poem (Wu Gu), not a modern style poem (Wu Jue).

This has long been established in the history of literature. For example:

The Ming Dynasty writer and poetry critic Hu Yinglin's poetry theory work "Shi Sou" said: "The Taibai Five Characters, such as "Silent Night Thoughts", "Jade Level Resentment", etc., are wonderful in ancient and modern times. "Yan Yi Qi Liang Ti" The "Qi Liang Ti" mentioned in it is a poetry style that appeared in the Qi and Liang Dynasties in the Southern Dynasties and is the predecessor of modern poetry.

Fan Zhen, a poet of the Yuan Dynasty, said: "A short ancient poem in five words cannot be explained clearly. If it is vague, there will be an aftertaste, as is the case in this article.