YouTube currently requires that content creators let viewers know “when they use AI to meaningfully alter or generate photorealistic content.” It applies to “AI-generated music” (not photorealistic) but not to “riding a unicorn through a fantastical world” (this could be photorealistic, though it is not plausible). YouTube then summarizes the policy in a different way: “Realistic AI content and meaningful changes require disclosure, while non-realistic or minor edits don’t.” They might also note very different things as important, thus creating different outlines of the same material. They might pepper a script with jokes or digressions not usually suggested by an AI.