Repositories list

• lightning-thunder

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

  Python

  •

  Apache License 2.0

  •108•1.4k•419•68•Updated Dec 6, 2025Dec 6, 2025

• litgpt

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

  aideep-learningartificial-intelligence+ 4large-language-modelsllmllmsllm-inference

  Python

  •

  Apache License 2.0

  •1.4k•13k•230•15•Updated Dec 5, 2025Dec 5, 2025

• litData

  Public

  Lightning-AI/litData’s past year of commit activity
  Speed up model training by fixing data loading.

  Python

  •

  Apache License 2.0

  •80•564•38•12•Updated Dec 3, 2025Dec 3, 2025

• utilities

  Public

  Lightning-AI/utilities’s past year of commit activity
  Common Python utilities and GitHub Actions in Lightning Ecosystem

  ci-cddeveloper-toolsgithub-actions

  Python

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  Apache License 2.0

  •20•63•1•7•Updated Dec 3, 2025Dec 3, 2025

• LitServe

  Public

  Lightning-AI/LitServe’s past year of commit activity
  Build custom inference engines for models, agents, multi-modal systems, RAG, pipelines and more.

  apiwebai+ 6deep-learningrest-apiartificial-intelligencedeveloper-toolsservingfastapi

  Python

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  Apache License 2.0

  •258•3.7k•24•4•Updated Dec 2, 2025Dec 2, 2025

• torchmetrics

  Public
  Machine learning metrics for distributed, scalable PyTorch applications.

  pythondata-sciencemachine-learning+ 4deep-learningmetricspytorchanalyses

  Python

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  Apache License 2.0

  •466•2.4k•83•38•Updated Dec 2, 2025Dec 2, 2025

• LitModels

  Public

  Lightning-AI/LitModels’s past year of commit activity
  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.

  modelsharingcheckpoint+ 1fine-tuning

  Python

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  Apache License 2.0

  •6•38•2•5•Updated Dec 1, 2025Dec 1, 2025

• pytorch-lightning

  Public

  Lightning-AI/pytorch-lightning’s past year of commit activity
  Pretrain, finetune ANY AI model of ANY size on 1 or 10,000+ GPUs with zero code changes.

  pythondata-sciencemachine-learning+ 4aideep-learningpytorchartificial-intelligence

  Python

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  Apache License 2.0

  •3.6k•31k•817•103•Updated Dec 1, 2025Dec 1, 2025

• litAI

  Public
  LLM router + minimal agent framework in one. Call any LLM API with OpenAI format. Unified billing, tools, retries, fallback, logging. Build agents and AI apps in pure Python. Full control. Zero magic.

  apiaichatbot+ 4openaiagentsllmopenai-proxy

  Python

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  Apache License 2.0

  •8•34•0•2•Updated Dec 1, 2025Dec 1, 2025

• tutorials

  Public archive

  Lightning-AI/tutorials’s past year of commit activity
  Collection of Pytorch lightning tutorial form as rich scripts automatically transformed to ipython notebooks.

  machine-learninglightningdeep-learning+ 4jupyter-notebooktutorialsnotebookspython-scripts

  Python

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  Apache License 2.0

  •80•318•12•3•Updated Aug 4, 2025Aug 4, 2025

• lightning-Habana

  Public archive
  Lightning support for Intel Habana accelerators.

  pythonmachine-learningdeep-learning+ 1pytorch

  Python

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  Apache License 2.0

  •8•26•1•8•Updated Aug 1, 2025Aug 1, 2025

• litperf

  Public
  Lightweight performance tracker for Python code - zero overhead when disabled.

  Python

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  Apache License 2.0

  •1•5•0•0•Updated Jul 26, 2025Jul 26, 2025

• probot

  Public archive
  TypeScript

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  ISC License

  •12•9•0•4•Updated Jul 22, 2025Jul 22, 2025

• lit-llama

  Public
  Implementation of the LLaMA language model based on nanoGPT. Supports flash attention, Int8 and GPTQ 4bit quantization, LoRA and LLaMA-Adapter fine-tuning, pre-training. Apache 2.0-licensed.

  Python

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  Apache License 2.0

  •527•6.1k•108•8•Updated Jul 1, 2025Jul 1, 2025

• forked-pdb

  Public
  Python pdb for multiple processes

  Python

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  Apache License 2.0

  •9•66•0•0•Updated May 24, 2025May 24, 2025

• hello-studio

  Public

  Lightning-AI/hello-studio’s past year of commit activity
  Starter projects for Lightning Studios

  Python

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  Apache License 2.0

  •2•4•0•0•Updated May 18, 2025May 18, 2025

• ecosystem-ci

  Public archive
  Automate issue discovery for your projects against Lightning nightly and releases.

  pythonlightweightdeep-learning+ 3integration-testingci-cdcompatibility-testing

  Python

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  Apache License 2.0

  •16•46•6•8•Updated May 6, 2025May 6, 2025

• dl-fundamentals

  Public archive

  Lightning-AI/dl-fundamentals’s past year of commit activity
  Deep Learning Fundamentals -- Code material and exercises

  pythonmachine-learningai+ 2deep-learningpytorch

  Jupyter Notebook

  •205•397•3•0•Updated Feb 28, 2024Feb 28, 2024

• lightning-Graphcore

  Public archive

  Lightning-AI/lightning-Graphcore’s past year of commit activity
  Python

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  Apache License 2.0

  •4•9•2•6•Updated Feb 1, 2024Feb 1, 2024

• .github

  Public
  0•0•0•0•Updated Dec 24, 2023Dec 24, 2023

• Lightning-multinode-templates

  Public
  Multinode templates for Pytorch Lightning

  Python

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  Apache License 2.0

  •1•7•1•0•Updated Nov 26, 2023Nov 26, 2023

• deep-learning-project-template

  Public archive

  Lightning-AI/deep-learning-project-template’s past year of commit activity
  Pytorch Lightning code guideline for conferences

  Python

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  Apache License 2.0

  •275•1.3k•11•3•Updated Sep 20, 2023Sep 20, 2023

• lm-evaluation-harness

  Public archive
  A framework for few-shot evaluation of autoregressive language models.

  Python

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  MIT License

  •2.9k•3•0•0•Updated Jun 5, 2023Jun 5, 2023

• engineering-class

  Public archive

  Lightning-AI/engineering-class’s past year of commit activity
  Lightning Bits: Engineering for Researchers repo

  Python

  •17•132•0•0•Updated Aug 29, 2022Aug 29, 2022