ChatGPT vs Sakana AI: who uses which
Customers, public proof and the companies that use both.
On usedby, 54 companies use ChatGPT and 3 use Sakana AI. 1 company uses both, including MUFG. ChatGPT leads among the Banking & Mortgages companies on usedby that use either tool.Latest check Oct 18, 2026: 26 of 57 public lines checked. Counts include every proof level, job-post signals included. A company on both tools counts at any proof level, and a job post on one side is marked as such.
Who uses ChatGPT, Sakana AI, or both
Every company with a public proof for at least one of the two tools.
53
use only ChatGPT
1
company uses both
2
use only Sakana AI
53 companies use only ChatGPT, 2 use only Sakana AI and 1 uses both, out of the 56 companies on usedby that use at least one of them.
Who uses both
Companies with a public line on both tools, at any proof level: the strongest proofs come first, and a job post is marked.
| Company | First public proof, ChatGPT |
|---|---|
 MUFG | On or before Oct 2026 |
By industry
Which tool the companies on usedby use, by industry. Shares of the companies on usedby that use ChatGPT, Sakana AI or both: a share of the companies on usedby, not of the market.
ChatGPT onlyBothSakana AI only
More common with ChatGPT
- Banking & Mortgages4 of the 5 Banking & Mortgages companies on usedby that use either tool use ChatGPT, 1 of them alongside Sakana AI.
- Fintech & Payments5 of the 5 Fintech & Payments companies on usedby that use either tool use ChatGPT.
Source: every usedby line, from confirmed proofs to job-post signals (the weakest proof level).
Side by side
Facts from our data and from each vendor's public pages. Each line says where it comes from.
ChatGPT
Sakana AIWhat customers report
Results as the vendor or the customer published them, with the source and the date.
ChatGPT
with people saving nearly three hours per week on routine tasks and more than 80% engaging daily.
BBVA
Vendor case study, openai.com, captured Oct 18, 2026
Sakana AI
No reviewed story for Sakana AI yet.
Questions about ChatGPT and Sakana AI
Which is used more, ChatGPT or Sakana AI?
ChatGPT has more customers on usedby: 54 against 3 for Sakana AI.
Do companies use both ChatGPT and Sakana AI?
Yes. 1 company uses both on usedby, including MUFG.
Who uses ChatGPT?
54 companies on usedby, each with the public page that shows it. See who uses ChatGPT.
Who uses Sakana AI?
3 companies on usedby, each with the public page that shows it. See who uses Sakana AI.
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 four proof levels: confirmed, declared by the company itself, observed or signal (a job post, the weakest). A company counts as using both tools when it has a line on each, at any level; the list shows the strongest proofs first and marks job posts.