SOP Ai detection

hello, I have written my SOP on my own, including all the content. However, I used ChatGPT to correct the grammar. After that, I checked it on AI detection websites, and the results showed scores like 90% and 65% on different websites. Now I’m confused about which one to trust. Do we really need to make our SOP more “humanized”?

could anyone please tell me?

thanks in advance.