Azure OpenAI Vector Store File Content API Returns 404 Resource Not Found (2025-04-01-preview)

Question

Hi Team,

I am testing the Azure OpenAI Vector Store APIs using API version 2025-04-01-preview.

My Azure OpenAI resource is deployed in East US 2.

The following APIs are working successfully:

The file status is completed and I can retrieve the file metadata without any issues.

Example response:

However, when I call the documented Retrieve Vector Store File Content endpoint:

I receive the following response:

Things already verified:

• Azure OpenAI endpoint is correct.
• API version is 2025-04-01-preview.
• Vector Store exists.
• File exists.
• File status is completed.
• GET /vector_stores/{vector_store_id}/files/{file_id} works successfully.
• Only the /content endpoint returns 404.

According to the preview REST API documentation, this endpoint should return the contents of the Vector Store file.

Could Microsoft confirm:

1. Is GET /vector_stores/{vector_store_id}/files/{file_id}/content currently supported in Azure OpenAI?
2. Is there any known issue or regional limitation for this endpoint?
3. Has anyone successfully used this endpoint with API version 2025-04-01-preview?

Thanks in advance.