@Cauan Sousa Welcome to Microsoft Q&A Forum, Thank you for posting your query here!
.
Plan 1:
Firstly, ensure that your Azure Open AI Resource is deployed to the regions mentioned here, since the GPT Vision is only supported in these regions.
.
Plan 2:
Open the Azure AI Foundry (Azure AI Studio), Then within the deployments section select the GPT4 model, select Standard and click on the customize button.
Here you can select the Vision-preview option:
.
Hope this helps. If you have any follow-up questions, please let me know. I would be happy to help.
**
Please do not forget to "Accept the answer” and “up-vote” wherever the information provided helps you, this can be beneficial to other community members.