Hi Jon Barker,
Thank you for reaching out to us on the Microsoft Q&A forum.
Access to the Azure OpenAI service is still restricted and not available for all subscriptions. Users must meet specific criteria outlined in this form, and access will be granted upon review of the submitted details.
To obtain an Azure subscription with access to the Azure OpenAI service, you need to complete and submit the form.
If your request does not meet the acceptance criteria, you can alternatively use the OpenAI public API.
Please note that Azure for Students and free trial subscriptions no longer support Azure OpenAI.
Additionally, your subscription should be a pay-as-you-go account to ensure successful deployments of Azure OpenAI once your request is approved. More information is available here and here
If you have found the answer provided to be helpful, please click on the "Accept answer/Upvote" button so that it is useful for other members in the Microsoft Q&A community.