YouTube requires disclosure of AI-generated or altered content (support.google.com)

• Creators must disclose realistic AI-generated content via YouTube Studio upload settings.
• Automatic detection uses C2PA metadata, YouTube's own tools, and internal systems.
• Penalties for nondisclosure include manual labels, content removal, or Partner Program suspension.

"YouTube has introduced a policy requiring creators to disclose when they use AI to meaningfully alter or generate photorealistic content. The disclosure is done via a setting in YouTube Studio during upload. Failure to comply may lead to penalties including content removal or channel suspension."