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LitGPT vs OpenRLHF

A side-by-side comparison of two self-hosted self-hosted ai options — licensing, setup difficulty, resource needs, and what each one replaces.

Not the right match-up?
LI LitGPT Recipes for pretraining and finetuning open LLMs VS OP OpenRLHF High-performance RLHF framework for training LLMs
FeatureLitGPTOpenRLHF
Deploy effortRead-the-docs projectRead-the-docs project
Health score94 · Excellent93 · Excellent
CategorySelf-Hosted AISelf-Hosted AI
LicenseApache-2.0Apache-2.0
LanguagePythonPython
Setup difficultyHardHard
Min. RAM16,384 MB16,384 MB
Deploymentsourcesource
GitHub stars★ 13,682★ 10,040
First released20232023
ReplacesOpenAI Fine-tuningOpenAI Fine-tuning

What are LitGPT and OpenRLHF?

LitGPT

LitGPT is a collection of open-source implementations of 20+ large language models with recipes for pretraining, finetuning, and deployment. Maintained by Lightning AI, it is built for running models on your own hardware.

  • 20+ model implementations
  • Pretraining and finetuning recipes
  • Quantization support
  • Self-host friendly

OpenRLHF

OpenRLHF is a scalable framework for reinforcement learning from human feedback, supporting PPO, DPO and other algorithms on large language models. It can be self-hosted on GPU clusters for end-to-end RLHF training.

  • PPO and DPO support
  • Distributed training
  • Ray-based scaling
  • vLLM-accelerated generation

LitGPT vs OpenRLHF: key differences

Both projects are written in Python.

Why pick each one

Choose LitGPT if…

  • Released under the Apache-2.0 license
  • Mature project with 13.7k GitHub stars
  • Written in Python
LitGPT details

Choose OpenRLHF if…

  • Released under the Apache-2.0 license
  • Mature project with 10k GitHub stars
  • Written in Python
OpenRLHF details

Frequently asked questions

Is LitGPT or OpenRLHF better?

Neither is universally better. LitGPT has the larger community; both share a hard setup difficulty, so the decision comes down to features and licensing.

Are LitGPT and OpenRLHF free and open-source?

Yes. LitGPT is licensed under Apache-2.0 and OpenRLHF under Apache-2.0. Both can be self-hosted at no software cost.

Can I run LitGPT and OpenRLHF with Docker?

LitGPT: check the project docs for container support. OpenRLHF: check the project docs for container support.

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