Are you running into a permissions error when trying to access the Foundation Model API endpoints, like Claude Fable 5 or Claude Sonnet 5, through the AI Playground? If your calls are returning a 403 PERMISSION_DENIED message, stating that the endpoint is temporarily disabled due to a “Databricks-set rate limit of 0,” here’s how you can fix it.
First, know that this issue typically happens when a rate limit set by your Databricks admin blocks you from using the models. It often means the limit is currently set to zero, preventing any calls to the API.
To solve this issue, you should check the following steps:
-
Verify Your Environment
Ensure your workspace is on the Azure Databricks Premium tier and is set up in the correct region, such as Canada Central. Confirm that the workspace is active and that the models you want to use (Claude Fable 5 and Claude Sonnet 5) are enabled and listed in your environment. -
Check Workspace Settings and Quotas
Use tools like Azure CLI or the Databricks workspace UI to review your workspace’s configuration. Ensure your subscription and workspace are properly set up and that the quota and model availability are correct. -
Review Service Limits and Rate Limits
The 0 rate limit often indicates that an administrator has manually restricted API usage. Reach out to your Databricks support team or admin to inquire about this limit. Ask if the limit can be increased or if there’s a reason it was set to zero. -
Request a Limit Increase
If the admin confirms the limit is set to zero, request them to increase the quota. They can do this through the admin settings or by adjusting policies that control usage limits. -
Verify Changes and Test
After your admin increases the limit, wait for the update to take effect. Then, try calling the API again via the AI Playground. If everything is set correctly, your calls should go through without errors.
If you’re not the admin, communicating clearly with your support team or administrator is key. Provide details about the error, the environment, and what you’ve already checked to help them diagnose and resolve the issue faster.
This process should help you lift the restriction and get your Foundation Models working smoothly again.