Codeium vs GitHub copilot: who uses which
Customers, public proof and the companies that use both.
On usedby, 18 companies use Codeium and 40 use GitHub copilot. 1 company uses both, including Mercado Libre. Codeium leads among the IT Services & System Integration companies on usedby that use either tool.Latest check Oct 7, 2026: 30 of 58 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 Codeium, GitHub copilot, or both
Every company with a public proof for at least one of the two tools.
17
use only Codeium
1
company uses both
39
use only GitHub copilot
17 companies use only Codeium, 39 use only GitHub copilot and 1 uses both, out of the 57 companies on usedby that use at least one of them.
Where it lands
Newest customers
No new customer since tracking started on October 3, 2026.
Where it lands
Newest customers
We have not started tracking changes for GitHub copilot yet.
Who uses both
Companies with a confirmed or observed line on both tools.
| Company |
|---|
 Mercado Libre |
Side by side
Facts from our data and from each vendor's public pages. Each line says where it comes from.
Codeium
GitHub copilotWhat customers report
Results as the vendor or the customer published them, with the source and the date.
Codeium
No reviewed story for Codeium yet.
GitHub copilot
That peer-led rollout helped ASOS reach over 90% Copilot adoption across the engineering team within months.
ASOS
Vendor case study, github.com, published Jul 30, 2026
Cathay rolled out GitHub Copilot to more than 1,000 developers in just one week
Cathay
Vendor case study, github.com, published Oct 27, 2025
Questions about Codeium and GitHub copilot
Which is used more, Codeium or GitHub copilot?
GitHub copilot has more customers on usedby: 40 against 18 for Codeium.
Do companies use both Codeium and GitHub copilot?
Yes. 1 company uses both on usedby, including Mercado Libre.
Who uses Codeium?
18 companies on usedby, each with the public page that shows it. See who uses Codeium.
Who uses GitHub copilot?
40 companies on usedby, each with the public page that shows it. See who uses GitHub copilot.
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.