Lightning AI

The platform to build ML models & Lightning Apps that "glue" together your favorite ML tools. The all-in-one platform for AI development. Code together. From your browser - with zero setup. From the creators of PyTorch Lightning. Lightning AI is a cloud platform that helps developers and teams build, train, and deploy AI models quickly, especially if you're already using PyTorch. It combines GPU workspaces called Lightning Studios with tools for scalable training and inference, and it's designed to make the whole process feel more intuitive than general cloud setups. PyTorch Lightning is the open-source framework created by the same team that powers Lightning AI. The platform builds on it to give you cloud workspaces, managed GPUs, and AI-assisted coding so you can focus on your models instead of infrastructure. It's great for PyTorch developers, AI researchers, and teams working on LLMs, agents, RAG systems, or multimodal models. Beginners can start with templates and AI help, while experts get full control over distributed training and deployments. Lightning Studios are collaborative GPU cloud notebooks where you code, debug, train, and run inference with AI assistance built right in. They come with prebuilt templates for common projects like chatbots, reasoning models, or diffusion training. It supports training across thousands of GPUs with tools like Lightning Fabric for distributed strategies, elastic clusters, and multi-cloud options so you scale without managing complex setups yourself. It provides pay-per-token APIs for popular models, custom serving with tools like LitServe, and easy deployment for private APIs, including multimodal and RAG systems.