There are multiple versions of Crossplag, both Free and paid. Up to 1000 words is free, and charges start after this amount.
In addition, for students, this tool also provides a mode of charging according to the number of users, which can help students who write papers to quickly detect whether the papers they write are suspected of plagiarism (hahahaha)
Finally, this tool also provides an API, which developers can use conveniently for secondary development. As I write this, I am eager to try it.
With the rapid development of AI, tools and thinking should not be neglected. Effective combination can maximize work efficiency.