CreateResponse fails with 400 when ResponseReasoningOptions.ReasoningSummaryVerbosity argument included

[rafCodes]

Service

Azure OpenAI

Describe the bug

When getting a response from the OpenAIResponseClient, if the ReasoningSummaryVerbosity to the ResponseReasoningOptions to have a summary of the chain of thought process, it fails with a 400 error as seen below:

<title>Document</title>

	Name	Value	Type
	Message	"HTTP 400 (invalid_request_error: unknown_parameter)\r\nParameter: reasoning.generate_summary\r\n\r\nUnknown parameter: 'reasoning.generate_summary'."	string

No error occurs if only the ReasoningEffortLevel is included in the ResponseCreationOptions and it also fails if only the ReasoningSummaryVerbosity is added.

Image of error and code:

Steps to reproduce

Run the code below.

This code is derived from the ResponseTests.cs in this repository:

openai-dotnet/tests/Responses/ResponsesTests.cs

Line 363 in 9308b2b

public async Task ResponsesWithReasoning()

Code snippets

public void test()    
{
        string yourEndpoint = "";
        string yourKey = "";

        AzureOpenAIClient azureClient = new(new Uri(yourEndpoint), new ApiKeyCredential(yourKey));

        OpenAIResponseClient client = azureClient.GetOpenAIResponseClient("o4-mini");

        ResponseCreationOptions options = new()
        {
            ReasoningOptions = new()
            {
                ReasoningEffortLevel = ResponseReasoningEffortLevel.Low,
                ReasoningSummaryVerbosity = ResponseReasoningSummaryVerbosity.Detailed,
            },
            Metadata =
            {
                ["superfluous_key"] = "superfluous_value",
            },
            Instructions = "Perform reasoning over any questions asked by the user.",
        };

        OpenAIResponse response = client.CreateResponse("What is the best way to fold a burrito?", options);
}

OS

winOS

.NET version

8

Library version

2.2.0-beta.4

[dglover1]

I'm also getting this error - from what I can tell this (the [CodeGenMember("GenerateSummary")] attribute on the ReasoningSummaryVerbosity property of ResponseReasoningOptions) indicates that openai-dotnet is still sending the old "generate_summary" parameter. According to the OpenAPI spec, "generate_summary" is now deprecated and should be "summary", which needs the attribute to be [CodeGenMember("Summary")], and the "generate_summary" literals in here would be "summary" (assuming these are generated based on the attribute).