ChatGPT vs Mistral: who uses which
Customers, public proof and the companies that use both.
On usedby, 40 companies use ChatGPT and 37 use Mistral. 1 company uses both, including Cisco. ChatGPT leads among the DevTools & Infrastructure companies on usedby that use either tool.Latest check Oct 8, 2026: 41 of 77 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, Mistral, or both
Every company with a public proof for at least one of the two tools.
39
use only ChatGPT
1
company uses both
36
use only Mistral
39 companies use only ChatGPT, 36 use only Mistral and 1 uses both, out of the 76 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
We have not started tracking changes for Mistral yet.
Who uses both
Companies with a confirmed or observed line on both tools.
| Company |
|---|
 Cisco |
By industry
Which tool the companies on usedby use, by industry. Shares of the companies on usedby that use ChatGPT, Mistral or both: a share of the companies on usedby, not of the market.
ChatGPT onlyBothMistral only
More common with ChatGPT
- DevTools & Infrastructure3 of the 5 DevTools & Infrastructure companies on usedby that use either tool use ChatGPT.
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.
ChatGPT
MistralWhat customers report
Results as the vendor or the customer published them, with the source and the date.
ChatGPT
No reviewed story for ChatGPT yet.
Mistral
2X increase in weekly active users
Ardian
Vendor case study, mistral.ai, published Apr 24, 2026
Questions about ChatGPT and Mistral
Which is used more, ChatGPT or Mistral?
ChatGPT has more customers on usedby: 40 against 37 for Mistral.
Do companies use both ChatGPT and Mistral?
Yes. 1 company uses both on usedby, including Cisco.
Who uses ChatGPT?
40 companies on usedby, each with the public page that shows it. See who uses ChatGPT.
Who uses Mistral?
37 companies on usedby, each with the public page that shows it. See who uses Mistral.
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.