Law note · China

Measures for Labeling AI-Generated Synthetic Content

Citation	Measures for Labeling AI-Generated Synthetic Content (国信办通字〔2025〕2号), issued by CAC, MIIT, MPS and NRTA, 2025, Arts. 4-5
Status	In effect
In force	2025-09-01
Reviewed	as of 2026-08-14

Internet information service providers must add an explicit, user-perceptible marker to AI-generated or AI-synthesized text, image, audio, video, and virtual-scene content, and must embed an implicit, machine-readable identifier in file metadata carrying generation attributes and the provider's name or code. Content-distribution platforms must check incoming content for labels and add a risk prompt to unlabeled or suspected-generated content. No person or organization may maliciously delete, alter, forge, or conceal a required label. The accompanying mandatory national standard GB 45438-2025 sets the technical parameters for both label types and takes effect the same date; this research did not locate an official standards-body URL for GB 45438-2025 independent of a commercial reseller, so it is described here rather than authored as its own instrument.

Primary source: official CAC notice, fetched and confirmed directly

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