@Castillo Lian / カスティロ リアン Thanks for getting back. In the form, you can select the gpt-4 in the dropdown to get the non-preview
model as shown below:
Also provide the details here:
Additionally, there is no guarantee that your request will be approved for an application.
If your request for JapanEast gets approved, you can expect an email from Cognitive Services Gating Support csgate@microsoft.com or Microsoft Azure OpenAI [msazureopenai@microsoft.com] .
Note that unfortunately, there is no ETA on when this would be approved considering its high in demand.
My suggestion would be to refer the Azure OpenAI model availability guide for region availability. Microsoft frequently updates this documentation for any new releases.