mention it clearly in your post with a source to the tool used, and add a significant amount of personal thought - tell readers what you think about that art.
Art posts are still treated the same as all posts. Half the post should be original.
-- quoted from hivewatchers
So yeah, you can use those images in your blogs as long as the whole content has a significant amount of originality from you.
AI-Generated Content - an announcement from hivewatchers for a detailed explanation.