I feel ChatGPT is good at improving my original stories (but not writing them itself)

This is not like AI-assisted writing (at least I don't think so), but it has helped me in making my original series ideas realistic and meaningful. I show it the rough drafts of my ideas/fiction, and it helps me by offering feedback, brainstorming possibilities, making suggestions, identifying issues that would make it less believable, and so on. Credit where it's due, it's been helpful. The important thing is that the ideas are still mine, and it's no different from asking actual people in the field for suggestions on making my story better.