Grok 4 Models Are not an Option

Hi, why are Grok 4 models not available via XAI api?

<img width="402" height="238" alt="Image" src="https://github.com/user-attachments/assets/3a2e6a56-ae0e-4290-9c72-27f24a18784b" />

They appear on XAI console

<img width="239" height="185" alt="Image" src="https://github.com/user-attachments/assets/5190238c-f78f-4115-b5de-891073fc0560" />