How is a literati's creative style formed? There are personal personality reasons (this is very important and almost decisive). People who study have their own advantages and disadvantages, social and cultural atmosphere and different life experiences. These reasons work together to form a person's writing style. So, we know people by reading poems. Similarly, if we are familiar with a person, we will naturally distinguish their differences in poetry.
Character talent
As far as talent is concerned, these two people are equal. Bold personality, like a river flowing into the sea, but also euphemistic, like a self-pity under the moon. As far beyond other literati, Li Bai and Su Shi have the same intelligence and sensitivity in character, which is actually the basic quality of being a literati. It's just that these two people go further and more obviously.
This also formed the two people in the background color creative style is basically the same.
This is why Wang Guowei said, "So, Dongpo is too white compared with Tang poetry."
Acquired environment
Li Bai claimed to have studied Taoism in the mountains when he was young. Actually, it's because he can't take the imperial examination. He talked about it everywhere in order to get close to the state religion and increase his political chips. Even his own surname is Li. But his personal intelligence made him show his ability in the direction of poetic research very early.
At that time, metrical poetry was popular, which was not Li Bai's specialty. Li Yong and He, the literary giants, are both metrical. In fact, they are not very interested in Li Bai, an old-school songwriter from Broken Leaf City. It is said that He Zhangzhi worships Li Bai and calls him "fallen immortal". In fact, Cong Lao is just a question about his unknown origin. You can be a drinking friend or a poetry friend, but you can recommend being an official.
This is why Li Bai wasted so many years. It was not until he was forty years old that he entered the imperial court as an academician and became the director of royal literature under the double recommendation of Taoist Wu Yun and Princess Yu Zhen.
As far as rigorous literature is concerned, Li Bai is a sharp and unruly sword, which can also be seen in his works. Although his seven wonders are contemporary, he sings more easily.