Code found in iOS 27 beta 5 points to Apple preparing a mainland China-specific version of Apple Intelligence, but does not confirm a launch date or a local partner. The strings say user requests would be processed on-device and would not be sent to Apple or the local company providing the required security mechanism.
The code also says Apple would collect information anonymously and share it in aggregate, while the security mechanism would be downloaded and updated automatically. The beta code does not identify the local provider or establish when Apple Intelligence will become available in mainland China. [IT Home, in Chinese]