Do AI Text Humanizers Really Make Content Undetectable or Just Rewrite It?

I’ve been exploring different tools that claim to transform AI-generated content into something that sounds more natural and human-like. On paper, it sounds like a perfect solution for writers, students, and freelancers who use AI to draft content. But I keep wondering do these tools actually make content truly human-like, or are they just rearranging words while keeping the same structure underneath? Some outputs I’ve seen still feel slightly “off,” even after processing. The flow improves, yes, but sometimes the tone still feels mechanical or overly polished. It makes me question whether AI