⚡️ Lightning AI

Turn ideas into AI, Lightning fast. Creators of PyTorch Lightning, Lightning AI Studio, TorchMetrics, Fabric, Lit-GPT, Lit-LLaMA

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README.md

Welcome to Lightning AI ⚡

The all-in-one platform for AI development. Code together. Prototype. Train. Scale. Serve. From your browser - with zero setup. From the creators of PyTorch Lightning.

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pytorch-lightning pytorch-lightning Public

Pretrain, finetune ANY AI model of ANY size on 1 or 10,000+ GPUs with zero code changes.

Python 31.4k 3.8k
torchmetrics torchmetrics Public

Machine learning metrics for distributed, scalable PyTorch applications.

Python 2.5k 538
litgpt litgpt Public

20+ high-performance LLMs with recipes to pretrain, finetune and deploy at scale.

Python 13.7k 1.5k
LitServe LitServe Public

A minimal Python framework for building custom AI inference servers with full control over logic, batching, and scaling.

Python 3.9k 310
litData litData Public

Speed up model training by fixing data loading.

Python 615 110
lightning-thunder lightning-thunder Public

PyTorch compiler that accelerates training and inference. Get built-in optimizations for performance, memory, parallelism, and easily write your own.

Python 1.5k 121

Repositories

Type Language Sort

skills Public

Lightning-AI/skills's past year of commit activity

Python 7 Apache-2.0 0 0 6 Updated Oct 3, 2026
sdk Public
SDK and CLI for lightning.ai platform. Develop and train AI with ease.

Lightning-AI/sdk's past year of commit activity

Python 10 Apache-2.0 3 3 16 Updated Oct 3, 2026
LitLogger Public
A minimal Python logger that tracks everything you try when building AI - metrics, prompts, models, etc, so you can see what changed and why.

Lightning-AI/LitLogger's past year of commit activity

Python 38 Apache-2.0 7 2 7 Updated Oct 2, 2026
torchmetrics Public
Machine learning metrics for distributed, scalable PyTorch applications.

Lightning-AI/torchmetrics's past year of commit activity

Python 2,475 Apache-2.0 538 121 (42 issues need help) 101 Updated Oct 1, 2026
LitServe Public
A minimal Python framework for building custom AI inference servers with full control over logic, batching, and scaling.

Lightning-AI/LitServe's past year of commit activity

Python 3,944 Apache-2.0 310 32 (8 issues need help) 30 Updated Oct 1, 2026
litData Public
Speed up model training by fixing data loading.

Lightning-AI/litData's past year of commit activity

Python 615 Apache-2.0 110 39 (21 issues need help) 10 Updated Oct 1, 2026
lightning-thunder Public
PyTorch compiler that accelerates training and inference. Get built-in optimizations for performance, memory, parallelism, and easily write your own.

Lightning-AI/lightning-thunder's past year of commit activity

Python 1,475 Apache-2.0 121 420 (8 issues need help) 82 Updated Sep 28, 2026
LitModels Public
Save, load, host, and share AI model checkpoints without slowing down training. Host on Lightning AI or your own cloud with enterprise-grade access controls.

Lightning-AI/LitModels's past year of commit activity

Python 40 Apache-2.0 9 2 (1 issue needs help) 13 Updated Sep 25, 2026
pytorch-lightning Public
Pretrain, finetune ANY AI model of ANY size on 1 or 10,000+ GPUs with zero code changes.

Lightning-AI/pytorch-lightning's past year of commit activity

Python 31,376 Apache-2.0 3,809 844 (122 issues need help) 259 Updated Sep 21, 2026
litgpt Public
20+ high-performance LLMs with recipes to pretrain, finetune and deploy at scale.

Lightning-AI/litgpt's past year of commit activity

Python 13,693 Apache-2.0 1,517 246 (52 issues need help) 64 Updated Sep 14, 2026