Question
You have an Azure Speech in Foundry Tools resource that hosts a custom speech to text model deployed to a custom endpoint. An agent uses the endpoint to perform real-time speech recognition.
You are approaching the expiration date of the custom speech to text model.
What is the expected behavior when the model expires?
- A. Speech recognition requests will return a 4xx error until a new custom model is deployed.
- B. Speech recognition requests will continue to use the expired custom model until the model is removed manually.
- C. Speech recognition requests will fall back to the most recent base model for the same locale. Correct
- D. The custom model will be deleted automatically when the model expires.
Explanation
On a custom endpoint, requests to an expired model fall back to the most recent base model for the same locale. You still get results, but recognition might not transcribe your domain terms accurately until you update the endpoint's model. The 4xx error applies to batch transcription requests that name an expired model, not to custom endpoints. An expired model is no longer available for transcription, so it cannot keep serving requests, and expiry is not described as deleting the model.
