Litgpt

Overview

LitGPT is a Python framework providing 20+ pre-built high-performance LLM implementations with recipes for pretraining, finetuning, and deployment at scale. It abstracts away infrastructure complexity to let builders work directly with model training and inference pipelines.

Best for

Best for
Teams building or customizing LLMs at scale with access to compute resources

Use cases

• Finetuning open-source LLMs on custom datasets
• Pretraining models from scratch with distributed compute
• Deploying trained models to production environments

Notes

LitGPT is a Python framework providing 20+ pre-built high-performance LLM implementations with recipes for pretraining, finetuning, and deployment at scale. It abstracts away infrastructure complexity to let builders work directly with model training and inference pipelines.

13,395 stars on GitHub. Last updated 2026-06-01. Licensed Apache-2.0.

Use cases

• Finetuning open-source LLMs on custom datasets
• Pretraining models from scratch with distributed compute
• Deploying trained models to production environments

Pros

• Covers full model lifecycle from pretraining through deployment
• 20+ vetted model implementations reduce setup time
• Built on Lightning for distributed training out of the box

Cons

• Requires Python and familiarity with training workflows
• Community-maintained, not backed by commercial support
• Learning curve steeper than inference-only tools

Indexed from awesome-llm and enriched against its public facts.