There are several organizations and websites that host AI art competitions on a regular basis. Some options to consider include:

The AI Art Awards: This annual competition, organized by the Art Gallery Network and the Art & AI Institute, recognizes the best and most innovative works of AI art from around the world.

The Neural Art Prize: This annual competition, organized by the Neural Art Collective, is open to artists who use AI in their work. The competition seeks to showcase the diverse range of approaches and techniques used in the field of AI art.

The AI Art Forum: This online platform, run by the organization Artnome, is dedicated to exploring the intersection of art and AI. It hosts regular competitions and exhibitions for AI artists.

The Lumen Prize: This annual competition, organized by Lumen Art Projects, recognizes excellence in the field of digital art, including works that use AI.

The Artex Prize: This annual competition, organized by the Artex Association, is open to artists who use AI in their work. It seeks to showcase the creative potential of AI and its role in shaping the future of art.

The Creative AI Awards: This annual competition, organized by the Creative AI Collective, recognizes the best and most innovative works of AI art from around the world.

These are just a few examples of organizations and websites that host AI art competitions. There may be other options available as well, depending on your location and interests.