Yes — realistic AI-generated or AI-edited video can legally require disclosure in any country, and major platforms add their own labelling duties on top.
YouTube requires disclosing realistic altered or synthetic content
When you upload content that is realistic and was meaningfully altered or generated with AI, you must tick 'Altered or synthetic content' in YouTube Studio. YouTube then shows a label in the description (and a more prominent label on the video for sensitive topics like health, news, elections, finance). Clearly unrealistic, animated, or trivially-edited content is exempt.
TikTok requires labeling realistic AI-generated content
TikTok requires creators to turn on the 'AI-generated content' toggle for realistic AI content. TikTok also auto-labels content that carries C2PA Content Credentials and content made with TikTok AI tools. Undisclosed realistic AI content may be removed under the Synthetic and Manipulated Media policy.
Meta labels AI content and expects creators to disclose
Meta (Instagram & Facebook) applies an 'AI info' label to content it detects as AI-generated or that carries industry signals (C2PA, IPTC). Creators are expected to disclose photorealistic AI content; failing to disclose materially deceptive AI media can lead to penalties.
X may label or limit deceptive synthetic & manipulated media
X's Synthetic and Manipulated Media policy targets media that is deceptively altered/fabricated and likely to cause harm. X may add labels, reduce visibility, or remove it; Community Notes often add context. There is no universal upload toggle, so proactive in-post disclosure is the safe practice.
Disclosa provides informational tooling, not legal advice. Rules change frequently and vary by context. Always verify against the official source and consult a qualified professional for your case.