Question: Where can I find a collection of visually striking and creative videos generated entirely by AI?

First up, SoraHub is a repository of videos created with OpenAI's Sora. It's packed with dreamlike scenery, sci-fi movie scenes and photorealistic imagery, all created without human involvement. New videos are added frequently, so you can keep up with the latest and most interesting creations.

Another good option is Make-A-Video, which uses text-to-image generation technology and machine learning algorithms to create realistic and imaginative videos based on text prompts. It can generate a variety of videos based on a single prompt and includes mechanisms to prevent bad results, so you should get a good selection of high-quality videos.

If you want to try out AI avatars and more advanced video generation, DeepBrain AI is worth a look. It lets you generate videos based on text prompts with photorealistic avatars, natural text-to-speech voices and customizable gestures. It's flexible enough to be used for education, business and marketing.

Last, Dream Machine is an AI model that can generate realistic, animated videos from text and images. It can handle smooth motion, natural camera panning and realistic interactions between characters, so it's good for projects that need a lot of production polish and creativity.