You can use AI, but only to generate max 30% of your code. We suggest you join the discord server if you need any help with coding or some discord servers for the language you will be coding in instead of generating code via AI so you will have a better understanding of how to code yourself and maybe make some friends during the jam.
In the discord server for the game jam we have a resources channel where people can link a variety of resources, and we also have a feedback/help channel if you need help with a part of your entry. There is also a looking for teammates channel you can utilise if you’d prefer to have help from another person to work on the code side of your game ^^.