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1. pytorch-lightning pytorch-lightning Public

   Pretrain, finetune ANY AI model of ANY size on multiple GPUs, TPUs with zero code changes.

   Python 30.2k 3.6k

2. torchmetrics torchmetrics Public

   Machine learning metrics for distributed, scalable PyTorch applications.

   Python 2.3k 459

3. litgpt litgpt Public

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

   Python 12.8k 1.3k

4. LitServe LitServe Public

   The easiest way to deploy agents, MCP servers, models, RAG, pipelines and more. No MLOps. No YAML.

   Python 3.6k 241

5. litData litData Public

   Transform datasets at scale. Optimize datasets for fast AI model training.

   Python 541 78

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 1.4k 106