H2O.ai vs Weights & Biases: who uses which
Customers, public proof and the companies that use both.
On usedby, 42 companies use H2O.ai and 55 use Weights & Biases. No company is listed with both yet. H2O.ai leads among the Banking & Mortgages companies on usedby that use either tool, Weights & Biases among the Artificial Intelligence companies.Latest check Oct 7, 2026: 97 of 97 public lines checked. Counts include every proof level, job-post signals included. Companies named on both have a confirmed or observed line on each side.
Who uses H2O.ai, Weights & Biases, or both
Every company with a public proof for at least one of the two tools.
42
use only H2O.ai
0
companies use both
55
use only Weights & Biases
42 companies use only H2O.ai, 55 use only Weights & Biases and 0 use both, out of the 97 companies on usedby that use at least one of them.
Where it lands
Newest customers
No new customer since tracking started on October 7, 2026.
Where it lands
Newest customers
We have not started tracking changes for Weights & Biases yet.
Who uses both
Companies with a confirmed or observed line on both tools.
By industry
Which tool the companies on usedby use, by industry. Shares of the companies on usedby that use H2O.ai, Weights & Biases or both: a share of the companies on usedby, not of the market.
H2O.ai onlyBothWeights & Biases only
More common with H2O.ai
- Banking & Mortgages4 of the 5 Banking & Mortgages companies on usedby that use either tool use H2O.ai.
More common with Weights & Biases
- Artificial Intelligence8 of the 8 Artificial Intelligence companies on usedby that use either tool use Weights & Biases.
Source: confirmed and observed usedby lines. Job-post signals, the weakest proof level, are left out of these shares.
Side by side
Facts from our data and from each vendor's public pages. Each line says where it comes from.
H2O.aiWeights & BiasesPricing, security and data residency are not checked yet. usedby adds them from each vendor's public pages, with the date of the check.
What customers report
Results as the vendor or the customer published them, with the source and the date.
H2O.ai
Decreased time to prototype new models from weeks to 2 days
Commonwealth Bank
Vendor case study, h2o.ai, captured Oct 7, 2026
Weights & Biases
Experiment tracking has given us 10x velocity
Woven by Toyota
Vendor case study, wandb.ai, published Feb 20, 2024
How ReelData uses Weights & Biases
ReelData
Vendor case study, wandb.ai, published Jan 21, 2026
Questions about H2O.ai and Weights & Biases
Which is used more, H2O.ai or Weights & Biases?
Weights & Biases has more customers on usedby: 55 against 42 for H2O.ai. H2O.ai leads among the Banking & Mortgages companies on usedby that use either tool, Weights & Biases among the Artificial Intelligence companies.
Do companies use both H2O.ai and Weights & Biases?
usedby has not found a company with a confirmed or observed line on both H2O.ai and Weights & Biases yet.
Who uses H2O.ai?
42 companies on usedby, each with the public page that shows it. See who uses H2O.ai.
Who uses Weights & Biases?
55 companies on usedby, each with the public page that shows it. See who uses Weights & Biases.
How does usedby count customers?
A company counts when a public page shows it: a vendor's customer page, a case study, a press release or a job post, most saved with a dated capture. Every line is a customer, at one of three proof levels: confirmed, observed or signal (a job post, the weakest). A company is named as using both tools when its lines on both are confirmed or observed.