Incredible quality of AI music

This guy, Endless Taverns, produces excellent music using generative AI. I got recommended this song by Spotify and I really liked it. It gave me a feeling that it was AI-generated that's why I checked and learned about it more, but it is still something I enjoy listening to.

Lyrics seem to be very focussed on his interests Warhammer 40k and D&D, and he creates a song every couple of days. It is interesting to think about that since it seems now people can create a lot of music suitable to very niche tastes.

Tools he uses; Suno, Midjourney, Claude, and Runway. What are the credits in such a song?