Don't expose token usage in streamed responses

[Edwin-Luijten]

Is there a way to hide the token usage from the response stream?

[patelvivekdev]

You can pass sendUsage to false

https://ai-sdk.dev/docs/reference/ai-sdk-core/stream-text#merge-into-data-stream.data-stream-options.send-usage

import { convertToCoreMessages, streamText, UIMessage } from "ai";
import { google } from "@ai-sdk/google";

export const maxDuration = 60;

export async function POST(req: Request) {
  const {
    messages,
  }: { messages: UIMessage[] } = await req.json();

  const result = streamText({
    model: google("gemini-2.0-flash"),
    system: "You are a helpful assistant.",
    messages: convertToCoreMessages(messages)
  });

  return result.toDataStreamResponse({ sendUsage: false });
}

[Edwin-Luijten]

Thanks a bunch =)!