Repositories list

• 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.

  loggingmetrics-visualizationexperiment-manager+ 1experiment-tracking

  Python

  •

  Apache License 2.0

  •4•18•0•3•Updated Feb 13, 2026Feb 13, 2026

• 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•417•63•Updated Feb 12, 2026Feb 12, 2026

• 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

  •24•63•1•1•Updated Feb 11, 2026Feb 11, 2026

• LitServe

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

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

  Python

  •

  Apache License 2.0

  •265•3.8k•22•1•Updated Feb 9, 2026Feb 9, 2026

• 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•236•12•Updated Feb 8, 2026Feb 8, 2026

• 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

  •3.7k•31k•829•120•Updated Feb 4, 2026Feb 4, 2026

• 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

  •

  Apache License 2.0

  •9•42•2•3•Updated Feb 3, 2026Feb 3, 2026

• litData

  Public

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

  Python

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  Apache License 2.0

  •87•575•37•9•Updated Feb 3, 2026Feb 3, 2026

• torchmetrics

  Public

  Lightning-AI/torchmetrics’s past year of commit activity
  Machine learning metrics for distributed, scalable PyTorch applications.

  pythondata-sciencemachine-learning+ 4deep-learningmetricspytorchanalyses

  Python

  •

  Apache License 2.0

  •476•2.4k•85•36•Updated Jan 30, 2026Jan 30, 2026

• litAI

  Public

  Lightning-AI/litAI’s past year of commit activity
  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 i…

  apiaichatbot+ 4openaiagentsllmopenai-proxy

  Python

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  Apache License 2.0

  •10•40•1•0•Updated Jan 15, 2026Jan 15, 2026

• 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•320•12•3•Updated Aug 4, 2025Aug 4, 2025

• lightning-Habana

  Public archive

  Lightning-AI/lightning-Habana’s past year of commit activity
  Lightning support for Intel Habana accelerators.

  pythonmachine-learningdeep-learning+ 1pytorch

  Python

  •

  Apache License 2.0

  •8•27•1•8•Updated Aug 1, 2025Aug 1, 2025

• litperf

  Public

  Lightning-AI/litperf’s past year of commit activity
  Lightweight performance tracker for Python code - zero overhead when disabled.

  Python

  •

  Apache License 2.0

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

• probot

  Public archive

  Lightning-AI/probot’s past year of commit activity
  TypeScript

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  ISC License

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

• lit-llama

  Public

  Lightning-AI/lit-llama’s past year of commit activity
  Implementation of the LLaMA language model based on nanoGPT. Supports flash attention, Int8 and GPTQ 4bit quantization, LoRA and LLaMA-Adapter fine-tuning, pre-…

  Python

  •

  Apache License 2.0

  •523•6.1k•100•7•Updated Jul 1, 2025Jul 1, 2025

• forked-pdb

  Public

  Lightning-AI/forked-pdb’s past year of commit activity
  Python pdb for multiple processes

  Python

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  Apache License 2.0

  •9•80•0•0•Updated May 24, 2025May 24, 2025

• hello-studio

  Public
  Starter projects for Lightning Studios

  Python

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  Apache License 2.0

  •2•5•0•0•Updated May 18, 2025May 18, 2025

• ecosystem-ci

  Public archive

  Lightning-AI/ecosystem-ci’s past year of commit activity
  Automate issue discovery for your projects against Lightning nightly and releases.

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

  Python

  •

  Apache License 2.0

  •15•46•6•8•Updated May 6, 2025May 6, 2025

• dl-fundamentals

  Public archive
  Deep Learning Fundamentals -- Code material and exercises

  pythonmachine-learningai+ 2deep-learningpytorch

  Jupyter Notebook

  •209•400•3•0•Updated Feb 28, 2024Feb 28, 2024

• lightning-Graphcore

  Public archive
  Python

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  Apache License 2.0

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

• .github

  Public

  Lightning-AI/.github’s past year of commit activity
  0•0•0•0•Updated Dec 24, 2023Dec 24, 2023

• Lightning-multinode-templates

  Public

  Lightning-AI/Lightning-multinode-templates’s past year of commit activity
  Multinode templates for Pytorch Lightning

  Python

  •

  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

  •274•1.3k•11•3•Updated Sep 20, 2023Sep 20, 2023

• lm-evaluation-harness

  Public archive

  Lightning-AI/lm-evaluation-harness’s past year of commit activity
  A framework for few-shot evaluation of autoregressive language models.

  Python

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  MIT License

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

• engineering-class

  Public archive
  Lightning Bits: Engineering for Researchers repo

  Python

  •17•134•0•0•Updated Aug 29, 2022Aug 29, 2022