h2oGPT

Open-source LLM toolkit from H2O.ai for private chat, document search and fine-tuning.

Open Source Coding & Development
Visit Website ↗ by H2O.ai

What is h2oGPT?

h2oGPT is an open-source large language model toolkit from H2O.ai. It supports chat, private document search with retrieval augmentation, fine-tuning and evaluation, all under the permissive Apache 2.0 license. Developers can run it locally or in their own infrastructure to build private, customizable AI applications.

Key features

  • Open-source LLM chat and RAG under Apache 2.0
  • Private document search and Q&A
  • Fine-tuning and evaluation tooling
  • Self-hostable on your own hardware

Pros

  • Fully open source with permissive license
  • Runs privately with no data leaving your stack
  • Covers chat, RAG and fine-tuning in one toolkit

Cons

  • Needs technical skill to deploy and run
  • Hardware requirements for local inference
  • Documentation-heavy compared to hosted chat tools

h2oGPT at a glance

PricingOpen Source
CategoryCoding & Development
Platformsweb
CompanyH2O.ai
Official websitegithub.com
open sourcellmragfine-tuningprivate ai

How to choose the right Coding & Development tool

The right coding tool depends on where you write code and how much of your codebase it can understand. IDE integration is the first filter — a tool that lives in your editor, sees your project files and respects your stack will help far more than a general chatbot you paste snippets into. Look for accurate completions, clear explanations of suggested changes, and strong refactoring and debugging support for your main languages. Privacy deserves real attention: check whether your code is used for training, and whether a self-hosted or enterprise option exists for sensitive projects. Price against the hours it actually saves — most developers feel the difference within the first week of real use.

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h2oGPT FAQs

What is h2oGPT?

h2oGPT is an open-source large language model toolkit from H2O.ai. It supports chat, private document search with retrieval augmentation, fine-tuning and evaluation, all under the permissive Apache 2.0 license. Developers can run it locally or in their own infrastructure to build private, customizable AI applications.

What are the main features of h2oGPT?

h2oGPT offers Open-source LLM chat and RAG under Apache 2.0, Private document search and Q&A, Fine-tuning and evaluation tooling and Self-hostable on your own hardware.

How much does h2oGPT cost?

h2oGPT is open source, so the software itself is free to download, use and self-host. Your only costs are the infrastructure you run it on and any paid services you connect to it.

What are the pros and cons of h2oGPT?

Strengths of h2oGPT include Fully open source with permissive license; Runs privately with no data leaving your stack; Covers chat, RAG and fine-tuning in one toolkit. On the downside, Needs technical skill to deploy and run; Hardware requirements for local inference; Documentation-heavy compared to hosted chat tools.