Onyx vs Perplexity: who uses which
Customers, public proof and the companies that use both.
On usedby, 14 companies use Onyx and 26 use Perplexity. 1 company uses both, including Ramp. Perplexity leads among the Fintech & Payments companies on usedby that use either tool.Latest check Oct 5, 2026: 36 of 40 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 Onyx, Perplexity, or both
Every company with a public proof for at least one of the two tools.
13
use only Onyx
1
company uses both
25
use only Perplexity
13 companies use only Onyx, 25 use only Perplexity and 1 uses both, out of the 39 companies on usedby that use at least one of them.
Who uses both
Companies with a confirmed or observed line on both tools.
| Company |
|---|
 Ramp |
Side by side
Facts from our data and from each vendor's public pages. Each line says where it comes from.
Onyx
PerplexityWhat customers report
Results as the vendor or the customer published them, with the source and the date.
Questions about Onyx and Perplexity
Which is used more, Onyx or Perplexity?
Perplexity has more customers on usedby: 26 against 14 for Onyx.
Do companies use both Onyx and Perplexity?
Yes. 1 company uses both on usedby, including Ramp.
Who uses Onyx?
14 companies on usedby, each with the public page that shows it. See who uses Onyx.
Who uses Perplexity?
26 companies on usedby, each with the public page that shows it. See who uses Perplexity.
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.