On what Percentage on your startups did you use AI?

Hey Mark, want to support one that has zero AI (for now tbh, there's a huge potential to include some GPT things)? As for building it, we used ChatGPT for some of the copy and marketing material, I'd say something like 30% was done with the help of AI. It's hard to estimate, because counting time we can, but in delivery terms, how would you estimate.