Braintrust vs Mem0: who uses which
Customers, public proof and the companies that use both.
On usedby, 39 companies use Braintrust and 16 use Mem0. 1 company uses both, including Vercel. Braintrust leads among the DevTools & Infrastructure companies on usedby that use either tool.Latest check Oct 7, 2026: 55 of 55 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 Braintrust, Mem0, or both
Every company with a public proof for at least one of the two tools.
38
use only Braintrust
1
company uses both
15
use only Mem0
38 companies use only Braintrust, 15 use only Mem0 and 1 uses both, out of the 54 companies on usedby that use at least one of them.
Where it lands
Newest customers
We have not started tracking changes for Braintrust yet.
Where it lands
Newest customers
No new customer since tracking started on October 7, 2026.
Who uses both
Companies with a confirmed or observed line on both tools.
| Company |
|---|
 Vercel |
Side by side
Facts from our data and from each vendor's public pages. Each line says where it comes from.
Braintrust
Mem0What customers report
Results as the vendor or the customer published them, with the source and the date.
Braintrust
Continuous signal, 30-min fix cycles
Rex
Vendor case study, braintrust.dev, captured Oct 6, 2026
Mem0
No reviewed story for Mem0 yet.
Questions about Braintrust and Mem0
Which is used more, Braintrust or Mem0?
Braintrust has more customers on usedby: 39 against 16 for Mem0.
Do companies use both Braintrust and Mem0?
Yes. 1 company uses both on usedby, including Vercel.
Who uses Braintrust?
39 companies on usedby, each with the public page that shows it. See who uses Braintrust.
Who uses Mem0?
16 companies on usedby, each with the public page that shows it. See who uses Mem0.
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.