ChatGPT vs Dust: who uses which
Customers, public proof and the companies that use both.
On usedby, 40 companies use ChatGPT and 43 use Dust. No company is listed with both yet. Dust leads among the Fintech & Payments companies on usedby that use either tool.Latest check Oct 8, 2026: 31 of 83 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 ChatGPT, Dust, or both
Every company with a public proof for at least one of the two tools.
40
use only ChatGPT
0
companies use both
43
use only Dust
40 companies use only ChatGPT, 43 use only Dust and 0 use both, out of the 83 companies on usedby that use at least one of them.
Where it lands
Newest customers
We have not started tracking changes for ChatGPT yet.
Where it lands
Newest customers
No new customer since tracking started on October 2, 2026.
Who uses both
Companies with a confirmed or observed line on both tools.
Side by side
Facts from our data and from each vendor's public pages. Each line says where it comes from.
ChatGPT
DustWhat customers report
Results as the vendor or the customer published them, with the source and the date.
ChatGPT
No reviewed story for ChatGPT yet.
Dust

Today, a dozen people, from engineers to executives, access cost data weekly through Dust.
Dailymotion
Vendor case study, dust.tt, published Jun 25, 2026

Within six months, 87% of the company was active monthly
Alma
Vendor case study, dust.tt, published Jun 30, 2026
Questions about ChatGPT and Dust
Which is used more, ChatGPT or Dust?
Dust has more customers on usedby: 43 against 40 for ChatGPT.
Do companies use both ChatGPT and Dust?
usedby has not found a company with a confirmed or observed line on both ChatGPT and Dust yet.
Who uses ChatGPT?
40 companies on usedby, each with the public page that shows it. See who uses ChatGPT.
Who uses Dust?
43 companies on usedby, each with the public page that shows it. See who uses Dust.
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.