CoreWeave vs Groq: who uses which
Customers, public proof and the companies that use both.
On usedby, 18 companies use CoreWeave and 8 use Groq. 1 company uses both, including IBM.Latest check Oct 7, 2026: 18 of 26 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, Groq, or both
Every company with a public proof for at least one of the two tools.
17
use only CoreWeave
1
company uses both
7
use only Groq
17 companies use only CoreWeave, 7 use only Groq and 1 uses both, out of the 25 companies on usedby that use at least one of them.
Who uses both
Companies with a confirmed or observed line on both tools.
| Company |
|---|
 IBM |
Side by side
Facts from our data and from each vendor's public pages. Each line says where it comes from.
CoreWeave
GroqWhat 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
Groq
No reviewed story for Groq yet.
Questions about CoreWeave and Groq
Which is used more, CoreWeave or Groq?
CoreWeave has more customers on usedby: 18 against 8 for Groq.
Do companies use both CoreWeave and Groq?
Yes. 1 company uses both on usedby, including IBM.
Who uses CoreWeave?
18 companies on usedby, each with the public page that shows it. See who uses CoreWeave.
Who uses Groq?
8 companies on usedby, each with the public page that shows it. See who uses Groq.
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.