How to detect when sendFollowUpMessage actually finishes its response?

ChatGPT Apps SDK
1

Hi, I’m using window.openai.sendFollowUpMessage in my widget.

The issue is that the Promise returned by this function resolves immediately (0.0s), long before GPT even starts or finishes writing the response.

JavaScript

// It resolves instantly, regardless of the GPT's response status
await window.openai.sendFollowUpMessage({ prompt: "..." });
console.log("Resolved!"); // This prints almost at the same time as the call

Is there any way to know when GPT has completely finished generating the response? I need to sync my UI with the end of the message.

Is there a specific callback or an event listener for this?

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