Xcode Version 26.0.1 (17A400) Model assets are unavailable

Yes, this is most likely the case. According to this support doc How to get Apple Intelligence:

Apple Intelligence features will not currently work for supported devices purchased in China mainland. For supported devices purchased outside of China mainland, Apple Intelligence features will not currently work if you are in China mainland and if your Apple Account Country or Region is also in China mainland.

For the Foundation Models framework on-device model asset to be on your device, you need Apple Intelligence enabled on your device. Check this in the Settings app.

For a more detailed model availability status in Foundation Models Framework, you can print out SystemLanguageModel.Availability

I do not think it is related to China as I live in Europe and get the same problem on my work MacBook Pro. The weird thing is that I get mixed results from a playground in Xcode (see attached pictures). Both "ready to go" and "Model assets are unavailable". My managed macBook Pro has a profile that blocks only two things from Apple Intelligence:

• Allow integration with external intelligence services (macOS 15.2 or later)
• Allow Apple Intelligence: external intelligence workspace IDs (macOS 15.3 or later)

I'm on Tahoe 26.0.1 and Apple M2 Pro. Any suggestion to allow me to run Foundation Models on my Mac? (At home, on my private MacBook Pro, everything works as expected)