The completion operation does not work with the specified model. Please choose a different model and try again. You can learn more about which models can be used with each operation here: https://go.microsoft.com/fwlink/?linkid=2197993.

The error you are encountering, specifically the "400 Bad Request" status code with the message "The completion operation does not work with the specified model, gpt-4-32k," is likely due to several possible reasons:

Model Compatibility

The error indicates that the gpt-4-32k model is not compatible with the completion operation you are trying to perform. This could be because the specific model you are using is not supported for the particular API endpoint or operation you are attempting[4.).

API Endpoint and Parameters

The payload or parameters you are passing to the API might be incorrect or not compatible with the specified model. For instance, the gpt-4-32k model may require specific parameters or configurations that are not being met in your request.

Rate Limiting and Throttling

Although less likely to cause this specific error, it's worth noting that rate limiting issues can sometimes lead to 400 errors if the API requests are not properly managed. However, the error message suggests an issue with model compatibility rather than rate limiting.

Model Specific Constraints

Some models, especially preview models, may have additional constraints or limitations that prevent them from being used with certain operations. In this case, gpt-4-32k might have such constraints that are not met by your current setup.