--- title: H2O Reviews meta_title: 'H2O Reviews 2026: Details, Pricing, & Features | G2' meta_description: Filter 24 reviews by the users' company size, role or industry to find out how H2O works for a business like yours. aggregate_rating: rating_value: 4.5 review_count: 24 scale: '5' date_modified: '2026-09-28' parent_category: name: Artificial Intelligence url: https://www.g2.com/categories/artificial-intelligence ---

H2O Reviews & Product Details

Profile Status

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User Insights

Average based on 24 real user reviews.

H2O Reviews FAQs

Generated using AI

Last updated: Nov 04, 2026

What is H2O, and what problem is it built to solve?

H2O is an open-source and enterprise-grade AI platform for helping organizations use machine learning for data analysis, predictions, and decision-making.

What languages does H2O support?

H2O supports 1 language: English.

What company sizes is H2O designed for?

H2O is designed for organizations with 1,001 or more employees. Target company sizes include:
  • 1,001–5,000 employees
  • 5,001–10,000 employees
  • More than 10,000 employees

Which industries is H2O built to serve?

H2O is built to serve a range of industries, including:
  • Banking
  • Government Administration
  • Higher Education
  • Hospital & Health Care
  • Legal Services
  • Leisure, Travel & Tourism
  • Pharmaceuticals
  • Management Consulting
  • Research
  • Retail
  • Accounting
  • Financial Services
  • Information Technology and Services
  • Insurance
  • Semiconductors
  • Telecommunications
  • Transportation/Trucking/Railroad
  • Oil & Energy
  • Utilities
  • Internet
  • Marketing and Advertising
  • Capital Markets
  • Biotechnology

Does H2O offer an open API, and what does it integrate with?

H2O offers an open API, which lets teams connect their own systems and workflows.

What support options are available, and is live/human support included?

Support options include email/help desk, phone support, and chat, with 24/7 live-rep support available.

What training resources are available to help teams get started?

Training resources include:
  • Documentation
  • Webinars
  • In-person training
  • Live online training
  • Videos

H2O Reviews (24)

Reviews

H2O Reviews (24)

4.5
24 reviews

What do users say?

Generated using AI from real user reviews
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Verified User in Information Technology and Services
GI
Verified User in Information Technology and Services
Enterprise (> 1000 emp.)
"Quick Prototyping"
4.5/5
What do you like best about H2O?

It's a great tool for really quick prototyping. Easy to build pretty complex models fast and test the results on datasets. It allows you to test various models before you decide which you want to fine tune. Good python support as well. Review collected by and hosted on G2.com.

What do you dislike about H2O?

Documentation can be improved especially with how to integrate with python. Review collected by and hosted on G2.com.

Verified User in Media Production
AM
Verified User in Media Production
Small-Business (50 or fewer emp.)
"Popular machine learning platform"
4/5
What do you like best about H2O?

I met h2o.ai with Gartner Magic Quadrant. It's great ML platform with it's extensive built-in library. Review collected by and hosted on G2.com.

What do you dislike about H2O?

Price architecture is confusing a bit. Also we'd like to see more use cases and customer stories for marketing applications. Review collected by and hosted on G2.com.

Verified User in Retail
UR
Verified User in Retail
Enterprise (> 1000 emp.)
Originally submitted 11/28/2018
"Great platform for R"
4.5/5
What do you like best about H2O?

It's a great platform with R library. Library functions saved our time. Review collected by and hosted on G2.com.

What do you dislike about H2O?

It needs more R libraries on planning management. Review collected by and hosted on G2.com.

LP
Laurry P.
Consultant en gestion informatique
Mid-Market (51-1000 emp.)
"Good but a little disappointed"
3/5
What do you like best about H2O?

The steam AI engine: an end-to-end platform that streamlines the entire process of creating and deploying intelligent applications it is fast Review collected by and hosted on G2.com.

What do you dislike about H2O?

Certain bugs and slowdowns that are very annoying Review collected by and hosted on G2.com.

Pricing

Pricing details for this product isn’t currently available. Visit the vendor’s website to learn more.

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