Agent Lightning
Agent Lightning is an MIT-licensed Python package that provides infrastructure for applying reinforcement learning and related optimization methods to AI agents. It is intended for developers and researchers training agentic workflows and integrating them with existing agent systems.
Overview
5 featuresIn the Frameworks & runtimes space, Agent Lightning takes a focused approach. It focuses on training and optimizing AI agents with reinforcement learning without building the supporting infrastructure from scratch. Agent Lightning is an open-source project aimed at AI researchers and developers building agentic systems. Agent Lightning is open source under the MIT license. It ships for the command line, and it can be self-hosted.
Microsoft builds and maintains Agent Lightning, and it first shipped in 2025. The project is developed in the open on GitHub with 17.6k stars and 54 commits in the last 90 days. Key capabilities include agent training, reinforcement learning, and agent optimization.
Summary written by a language model from the project’s public pages.
- Agent training
- Reinforcement learning
- Agent optimization
- Python package
- Agent workflows
Built with & integrations
Trust & compliance
Indexing history
1What PulseGate has recorded for this listing
Frequently asked questions about Agent Lightning
- What is Agent Lightning?
- Agent Lightning focuses on training and optimizing AI agents with reinforcement learning without building the supporting infrastructure from scratch. It is catalogued under Frameworks & runtimes on PulseGate.
- Who is Agent Lightning for?
- Agent Lightning is an open-source project built for AI researchers and developers building agentic systems.
- Is Agent Lightning free?
- Yes — Agent Lightning is open source under the MIT license and free to use.
- What platforms does Agent Lightning run on?
- Agent Lightning runs on the command line. It can also be self-hosted.
- Is Agent Lightning still maintained?
- The GitHub repository shows 54 commits in the last 90 days.
- What projects are similar to Agent Lightning?
- Similar projects tracked by PulseGate include agentmesh-lightning, Lightning AI, and Lightning.agentmesh-lightningLightning AILightning
- Who develops Agent Lightning?
- Agent Lightning is developed by Microsoft.
- How long has Agent Lightning been around?
- Agent Lightning first shipped in 2025.
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