# LangChain adds async subagents to Deep Agents

> Original title: Agents Are Going Async

- Source: LangChain Blog
- Published: 2026-11-05T05:00:00.000Z
- Bad Influence: https://badinfluence.news/items/tho259bh2bn6gecxm0mutcplv
- Original: https://www.langchain.com/blog/agents-are-going-async

## Summary

LangChain adds async subagents to Deep Agents, letting background workers run long tasks while the orchestrator stays available to the user. Async subagents are available in Deep Agents for Python and JavaScript and in Managed Deep Agents, where a subagent is made async with one field. Task notifications are in beta, so the API may still change.

## Why it matters

The post explains how async subagents differ from blocking loops, which helps developers judge whether background workers fit their agent architecture.