AI Agent WebSocket vs SSE 2026

When it comes to real-time push notifications to users, should you choose WebSocket or SSE? Many people spend a whole day making this choice, only to realize they picked the wrong one.

💡 What You Will Learn

When it comes to real-time push notifications to users, should you choose WebSocket or SSE? Many people spend a whole day making this choice, only to realize they picked the wrong one.

from sse_starlette.sse import EventSourceResponse
@app.get("/stream")
async def stream():
    async def gen():
        for chunk in agent.stream(query):
            yield {"data": chunk}
    return EventSourceResponse(gen())

Summary