litgpt
High-performance LLMs with recipes for pretraining, finetuning and deployment
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Decision brief
LitGPT offers extensive support for high-performance LLMs with comprehensive workflows for pretraining, fine-tuning, and deployment.
Good fit when
- If you are focusing on a project that requires rapid prototyping or experimentation with over 20 different LLMs to find the best fit for your application.
- When scalable deployment is essential. LitGPT’s workflows ensure smooth operationalization of models across various environments.
Avoid when
- If you need a tool specifically optimized for resource-constrained devices, as LitGPT focuses on high-performance LLMs and may require more resources.
- When your project is strictly limited to only one or two types of specific LLMs; in this case, another specialized framework that caters narrowly might be preferable.
- Pricing:
- freemium - The core LitGPT framework is free to use under an open source license, but users might encounter costs when deploying at scale or using high-performance models.
- Requirements:
- Min 16 GB RAM
Observed Jul 11, 2026 · Source: enrich:decision_facts
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Maintenance and security
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- Active (17d since push)
- As of 1w
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- Not a fork · Organization account
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- No lockfile
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Install
pip install litgptHow it fits your stack(18)
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Evidence and technical details
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Overview
LitGPT provides over 20 high-performance large language models and workflows for their pretraining, fine-tuning, and scalable deployment.
Capability facts
- Languages
- python
Source: github.language+pyproject.toml · Aug 7, 2026
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Compatibility
Sourced claims from the README excerpt - not unsourced marketing copy.
Source: README excerpt (regex_v1, Aug 7, 2026)
```python from litgpt import LLMSource link
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README
Quick start
Install LitGPT
pip install 'litgpt[extra]'
Load and use any of the 20+ LLMs:
from litgpt import LLM
llm = LLM.load("microsoft/phi-2")
text = llm.generate("Fix the spelling: Every fall, the family goes to the mountains.")
print(text)
---
### License
LitGPT is released under the [Apache 2.0](https://github.com/Lightning-AI/litgpt/blob/main/LICENSE.md) license.
For agents
This page has a .md twin and JSON over the API.