Lightning AI

Free tier

The AI development platform for building, training, and deploying AI models at scale

Free tier available·All audiences·Powered by Bring your own / Open source models·API available·Open source

Key strengths

End-to-end AI development platform from research to productionPyTorch Lightning framework for scalable model trainingManaged cloud compute with GPU accessSupports distributed training across multiple nodesSeamless transition from experimentation to deployment

Free tier + paid plans

New York, USA

Founded 2019

Self-hostable

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Lightning AI is a full-stack AI development platform built around PyTorch Lightning, an open-source framework that abstracts away boilerplate training code while retaining full flexibility of PyTorch. The platform provides managed cloud infrastructure for running AI workloads, including multi-GPU and multi-node distributed training, experiment tracking, and model serving. Developers can build and run Lightning Apps — modular, cloud-native workflows — that connect data pipelines, training jobs, and inference endpoints. The ecosystem supports integration with popular MLOps tools and enables reproducible, scalable AI development from a unified interface.

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