Therefore, the biggest difference should be that the poetic style of the Tang Dynasty is generally more imaginative, romantic and open. The representative figure is of course Li Bai.
If there are similarities, the biggest similarity is that they are all poems. . . .
Song poetry is not as famous as Tang poetry, but it developed on the basis of Tang poetry, so both of them are very artistic. For example, Ouyang Xiu's "A Willow Head on the Moon" is absolutely no less than Tang poetry after dusk.