codeium It is practical in China, especially in Windsurf to select any model can be written normally, because he is not directly call the original interface of the model.
The reason of unavailability usually appears in the registration and login stage, please choose to enter email password to register, if you choose Google authorization, you need a specific network environment.
If the pop-up page keeps showing the following message when you open the software for the first authorized login, then it's most likely because you are using Google Authorized Login, but do not have a "scientific" network environment.