CoreWeave vs Nebius AI Cloud: who uses which
Customers, public proof and the companies that use both.
On usedby, 18 companies use CoreWeave and 48 use Nebius AI Cloud. 1 company uses both, including Decart. CoreWeave leads among the Artificial Intelligence companies on usedby that use either tool.Latest check Oct 7, 2026: 66 of 66 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 CoreWeave, Nebius AI Cloud, or both
Every company with a public proof for at least one of the two tools.
17
use only CoreWeave
1
company uses both
47
use only Nebius AI Cloud
17 companies use only CoreWeave, 47 use only Nebius AI Cloud and 1 uses both, out of the 65 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
No new customer since tracking started on October 7, 2026.
Who uses both
Companies with a confirmed or observed line on both tools.
| Company |
|---|
 Decart |
Side by side
Facts from our data and from each vendor's public pages. Each line says where it comes from.
CoreWeave
Nebius AI CloudWhat customers report
Results as the vendor or the customer published them, with the source and the date.
CoreWeave
The team went from POC to production in three weeks.
Mercado Libre
Vendor case study, wf.coreweave.com, published Jul 2, 2026
saving 75% in cloud costs
NovelAI
Vendor case study, wf.coreweave.com, published Oct 6, 2026
Nebius AI Cloud
TrialHub reduces the time spent on feasibility assessments by 50%
TrialHub
Vendor case study, nebius.com, captured Oct 7, 2026
a single H100 GPU completed the training process 50–80% faster than the A100 GPU
Krisp
Vendor case study, nebius.com, captured Oct 7, 2026
Questions about CoreWeave and Nebius AI Cloud
Which is used more, CoreWeave or Nebius AI Cloud?
Nebius AI Cloud has more customers on usedby: 48 against 18 for CoreWeave.
Do companies use both CoreWeave and Nebius AI Cloud?
Yes. 1 company uses both on usedby, including Decart.
Who uses CoreWeave?
18 companies on usedby, each with the public page that shows it. See who uses CoreWeave.
Who uses Nebius AI Cloud?
48 companies on usedby, each with the public page that shows it. See who uses Nebius AI Cloud.
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.