From paper abstract:

“MarioGPT can not only generate diverse levels, but can be text-prompted for controllable level generation, addressing one of the key challenges of current PCG techniques. As far as we know, MarioGPT is the first text-to-level model. We also combine MarioGPT with novelty search, enabling it to generate diverse levels with varying play-style dynamics (i.e. player paths). This combination allows for the open-ended generation of an increasingly diverse range of content.”

https://github.com/shyamsn97/mario-gpt
https://arxiv.org/abs/2302.05981
https://www.youtube.com/watch?v=U-uH2Vvhxlo