LangSmith vs Mem0: who uses which
Customers, public proof and the companies that use both.
On usedby, 43 companies use LangSmith and 16 use Mem0. 1 company uses both, including Nvidia. LangSmith leads among the HR & Recruiting companies on usedby that use either tool.Latest check Oct 7, 2026: 53 of 59 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 LangSmith, Mem0, or both
Every company with a public proof for at least one of the two tools.
42
use only LangSmith
1
company uses both
15
use only Mem0
42 companies use only LangSmith, 15 use only Mem0 and 1 uses both, out of the 58 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
No new customer since tracking started on October 7, 2026.
Who uses both
Companies with a confirmed or observed line on both tools.
| Company |
|---|
 Nvidia |
Side by side
Facts from our data and from each vendor's public pages. Each line says where it comes from.
LangSmith
Mem0What customers report
Results as the vendor or the customer published them, with the source and the date.
Questions about LangSmith and Mem0
Which is used more, LangSmith or Mem0?
LangSmith has more customers on usedby: 43 against 16 for Mem0.
Do companies use both LangSmith and Mem0?
Yes. 1 company uses both on usedby, including Nvidia.
Who uses LangSmith?
43 companies on usedby, each with the public page that shows it. See who uses LangSmith.
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.