On 20 December 2024 the Cyberspace Administration of China (CAC) published the ninth batch of deep synthesis service algorithm filings. A batch publication is not a dramatic event, and that is precisely the point: filing has become the routine entry ticket for providers of synthetic media, voice cloning and face-swap services in China.
What filing actually requires
Deep synthesis filing obliges a provider to submit algorithm information — the type of service, the data and models used, and the mechanism for labelling generated content — and to accept public disclosure of that summary. It is registration plus transparency, not prior approval. A provider can launch after filing, but it cannot quietly operate without one.
Because the duty attaches to the service rather than to a corporate group, a company offering several distinct synthetic-media features may need more than one filing. That is a common source of delay when products are released as a suite rather than one at a time, and it is worth mapping the product line against the filing categories before a launch date is fixed.
The direction of travel
The ninth batch is best read as a data point on a rising line. The tenth batch followed soon after, and the generative AI filing counts kept climbing through the 611 model and 748 model registrations. Alongside deep synthesis, the CAC has extended filing to face recognition services, and provincial authorities now publish their own local filing batches.
The practical reading: filing is no longer a novelty that early movers can afford to ignore, but a recurring obligation with its own update cadence.
Practical actions for AI companies
First, classify your services. Ask whether any feature generates or substantially edits content in a way that qualifies as deep synthesis; if so, file before launch rather than after.
Second, keep filings current. Algorithms change, and a filing that describes a superseded model is a compliance gap waiting to be discovered.
Third, use local batches as an early-warning system. Provincial publication cycles reveal how enforcement attention is spreading across regions, which is useful when planning where to launch next.
Filing is administrative, but it is not optional, and treating it as a checklist item rather than a launch dependency is how products end up launched and then paused.
This article is based on the CAC’s ninth batch of deep synthesis service algorithm filings and public information and is for reference only; it does not constitute legal advice.