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@Lightning-AI

⚡️ Lightning AI

Turn ideas into AI, Lightning fast. Creators of PyTorch Lightning, Lightning AI Studio, TorchMetrics, Fabric, Lit-GPT, Lit-LLaMA
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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  1. 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 3.9k

  2. torchmetrics torchmetrics Public

    Machine learning metrics for distributed, scalable PyTorch applications.

    Python 2.5k 570

  3. litgpt litgpt Public

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

    Python 13.7k 1.5k

  4. LitServe LitServe Public

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

    Python 4k 328

  5. litData litData Public

    Speed up model training by fixing data loading.

    Python 617 114

  6. 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

Showing 10 of 30 repositories
  • 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 13,747 Apache-2.0 1,546 253 (52 issues need help) 82 Updated Nov 10, 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 13 Apache-2.0 3 3 19 Updated Nov 10, 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 3,994 Apache-2.0 328 38 (8 issues need help) 35 Updated Nov 1, 2026
  • litData Public

    Speed up model training by fixing data loading.

    Lightning-AI/litData's past year of commit activity
    Python 617 Apache-2.0 114 44 (20 issues need help) 21 Updated Nov 1, 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 40 Apache-2.0 7 2 7 Updated Nov 1, 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 31,448 Apache-2.0 3,855 862 (122 issues need help) 363 Updated Oct 30, 2026
  • skills Public
    Lightning-AI/skills's past year of commit activity
    Python 9 Apache-2.0 0 0 2 Updated Oct 15, 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) 63 Updated Oct 12, 2026
  • torchmetrics Public

    Machine learning metrics for distributed, scalable PyTorch applications.

    Lightning-AI/torchmetrics's past year of commit activity
    Python 2,482 Apache-2.0 570 152 (42 issues need help) 153 Updated Oct 7, 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 41 Apache-2.0 9 1 (1 issue needs help) 11 Updated Oct 7, 2026
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