How can I get the usage with GetStreamingChatMessageContentsAsync

[SebastianStehle]

Hi,

for the non-streaming method GetChatMessageContentsAsync I get the usage like this:

private decimal CalculateCosts(IReadOnlyList<ChatMessageContent> result)
{
    var costs = 0m;

    if (result[0].Metadata?.TryGetValue("Usage", out var m) == true && m is CompletionsUsage usage)
    {
        costs += usage.PromptTokens * options.PricePerInputTokenInEUR;
        costs += usage.CompletionTokens * options.PricePerOutputTokenInEUR;
    }

    return costs;
}

This works great. But for the streaming method, none of the items have a usage metadata right now. I am using OpenAI.

[moonbox3]

Hi @SebastianStehle, this would be served as an issue instead of a question in Q&A. Could you please file this issue so we can track it and investigate? Thank you. Let's then close this question.

[SebastianStehle]

Done. I thought I have just missed it somehow.