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⚡️ Lightning AI · GitHub
⚡️ Lightning AI
Turn ideas into AI, Lightning fast. Creators of PyTorch Lightning, Lightning AI Studio, TorchMetrics, Fabric, Lit-GPT, Lit-LLaMA
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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Pretrain, finetune ANY AI model of ANY size on 1 or 10,000+ GPUs with zero code changes.
Python
30.7k
3.6k
Machine learning metrics for distributed, scalable PyTorch applications.
Python
2.4k
469
20+ high-performance LLMs with recipes to pretrain, finetune and deploy at scale.
Python
13.1k
1.4k
A minimal Python framework for building custom AI inference servers with full control over logic, batching, and scaling.
Python
3.8k
264
Speed up model training by fixing data loading.
Python
566
81
PyTorch compiler that accelerates training and inference. Get built-in optimizations for performance, memory, parallelism, and easily write your own.
Python
1.4k
111
Repositories
Showing 10 of 25 repositories
lightning-thunder
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PyTorch compiler that accelerates training and inference. Get built-in optimizations for performance, memory, parallelism, and easily write your own.
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litgpt
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20+ high-performance LLMs with recipes to pretrain, finetune and deploy at scale.
Lightning-AI/litgpt’s past year of commit activity
pytorch-lightning
Public
Pretrain, finetune ANY AI model of ANY size on 1 or 10,000+ GPUs with zero code changes.
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LitServe
Public
A minimal Python framework for building custom AI inference servers with full control over logic, batching, and scaling.
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torchmetrics
Public
Machine learning metrics for distributed, scalable PyTorch applications.
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utilities
Public
Common Python utilities and GitHub Actions in Lightning Ecosystem
Lightning-AI/utilities’s past year of commit activity
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.
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Python
7
Apache-2.0
3
0
1
Updated Dec 22, 2025
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.
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litData
Public
Speed up model training by fixing data loading.
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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.
Lightning-AI/litAI’s past year of commit activity
Python
35
Apache-2.0
9
0
2
Updated Dec 1, 2025
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