It’s open source which means anyone can contribute to it, but it’s up to the contributor to mention the use of AI in their contribution. GB Studio 1.0 was released 7 years ago so it probably has close to none AI-generated/guided code in it, can’t say none because of what I explained above, but same thing can be said about any open source project at this point (unless they have a very strict disclosing policy but I doubt that’d fix the issue)