Some in the comments of Artificial Analysis' post claim this could be a new version of Midjourney or Baidu's AI tool, and this could certainly be the case given the creator's name is obscured, but ...

On that note, Reve Image doesn't mark images as made with AI, either. You'll find a "Reve.art" mention under the Content Creator field in the file's metadata, but nobody looks at that.

You may like Midjourney isn’t the best AI image generator for most people — but it is the most fun 5 mind-blowing ChatGPT image prompts you’ll wish you knew sooner ...