AI Agent Streaming Tokens 2026

Agent takes 3 seconds to think, while the user stares at a blank page waiting. Streaming output lets the LLM generate and display content simultaneously, greatly improving the user experience.

💡 What You Will Learn

Agent takes 3 seconds to think, while the user stares at a blank page waiting. Streaming output lets the LLM generate and display content simultaneously, greatly improving the user experience.

📜 Table of Contents

• Results
• Summary

from fastapi.responses import StreamingResponse

def stream_agent(query):
    def generate():
        for chunk in agent.stream(query):
            yield f'data: {json.dumps({"text": chunk})}\n\n'
    return StreamingResponse(generate(), media_type='text/event-stream')

const eventSource = new EventSource('/agent/chat?q=' + query);
eventSource.onmessage = (e) => {
    const data = JSON.parse(e.data);
    document.getElementById('output').textContent += data.text;
};

Results

Summary