Yes — realistic AI-generated or AI-edited image can legally require disclosure in California, and major platforms add their own labelling duties on top.
conditionaleffective 2026-08-02
California AI Transparency Act (SB 942) — provenance & detection duties
SB 942 (California AI Transparency Act) targets large 'covered providers' of generative AI (systems with high monthly user counts): they must offer a free AI-detection tool and embed both latent (machine-readable) and optional manifest (visible) disclosures in AI outputs. Amended by AB 853 (signed Oct 2025): a covered provider is a GenAI system with over 1,000,000 monthly users; the operative date moved to 2 Aug 2026, and from 1 Jan 2027 the duties also reach generative-AI hosting platforms.
Ready-to-paste label
Content generated by AI — provenance metadata attached.
Source: California Legislature — SB 942 (AI Transparency Act) · reviewed 2026-06-09
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.