Thank you for asking!
Our Generative AI policy is here, and we've added the link to the jam page. It is long, but please give it a thorough read.
Short story: Most GenAI technologies are fully prohibited.
Long story: GenAI technologies are acceptable IF AND ONLY IF their models are trained on permissively licensed data. Their use must not form a majority of the content in the game, AND these technologies must credited correctly.
Complete story: The policy itself.