Problem with an AI label is that AI is already and will be used for everything, even if not for direct 3D models or images, even just LLM for brainstorming, making lists of potential names, script, etc. so yeah, it is pointless as one label.
Different labels for "AI was used to write the script" "AI was used to make 2D images" and "AI was used to make models" would be more suitable.
