---
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id: "e986592dff42085cd40df279903eabc072d84ac32b667f715ab785710b9f47dc"
canonical_url: "https://aidr.today/e986592d?lang=en"
title: "Agent Lightning v1.0: A 3,500-Line Lightweight Agentic RL Framework for Training Agents with Real Harnesses"
lang: "en"
requested_lang: "en"
available_langs: ["en","vi"]
translation_fallback: null
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published_at: "2026-10-07T16:00:00.000Z"
category: "Frameworks"
topics: ["microsoft","agent","framework"]
source_urls: ["https://www.microsoft.com/en-us/research/blog/agent-lightning-v1-0-a-3500-line-lightweight-agentic-rl-framework-for-training-agents-with-real-harnesses/"]
summary: "Agent Lightning v1.0 is a 3,500-line lightweight agentic RL framework designed to connect existing agents to reinforcement learning training."
---

# Agent Lightning v1\.0: A 3,500\-Line Lightweight Agentic RL Framework for Training Agents with Real Harnesses

> [Open the canonical story](<https://aidr.today/e986592d?lang=en>)

**Published:** 2026-10-07T16:00:00.000Z
**Category:** Frameworks
**Topics:** microsoft, agent, framework

## Summary

Agent Lightning v1\.0 is a 3,500\-line lightweight agentic RL framework designed to connect existing agents to reinforcement learning training\.

## Sources

- [Story source](<https://www.microsoft.com/en-us/research/blog/agent-lightning-v1-0-a-3500-line-lightweight-agentic-rl-framework-for-training-agents-with-real-harnesses/>)