📄 ai-sdk/cookbook/node/stream-text-with-chat-prompt
File: stream-text-with-chat-prompt.md | Updated: 11/15/2025
Source: https://ai-sdk.dev/cookbook/node/stream-text-with-chat-prompt
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Text generation can sometimes take a long time to finish, especially when the response is big. In such cases, it is useful to stream the chat completion to the client in real-time. This allows the client to display the new message as it is being generated by the model, rather than have users wait for it to finish.
import { streamText } from 'ai';import { openai } from '@ai-sdk/openai';
const result = streamText({ model: openai('gpt-4o'), maxOutputTokens: 1024, system: 'You are a helpful chatbot.', messages: [ { role: 'user', content: [{ type: 'text', text: 'Hello!' }], }, { role: 'assistant', content: [{ type: 'text', text: 'Hello! How can I help you today?' }], }, { role: 'user', content: [{ type: 'text', text: 'I need help with my computer.' }], }, ],});
for await (const textPart of result.textStream) { process.stdout.write(textPart);}
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