Comet Opik vs Langchain: who uses which
Customers, public proof and the companies that use both.
On usedby, 17 companies use Comet Opik and 32 use Langchain. 1 company uses both, including Autodesk.Latest check Oct 7, 2026: 49 of 49 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 Comet Opik, Langchain, or both
Every company with a public proof for at least one of the two tools.
16
use only Comet Opik
1
company uses both
31
use only Langchain
16 companies use only Comet Opik, 31 use only Langchain and 1 uses both, out of the 48 companies on usedby that use at least one of them.
Where it lands
Newest customers
No new customer since tracking started on October 7, 2026.
Where it lands
Newest customers
No new customer since tracking started on October 3, 2026.
Who uses both
Companies with a confirmed or observed line on both tools.
| Company |
|---|
 Autodesk |
Side by side
Facts from our data and from each vendor's public pages. Each line says where it comes from.
Comet Opik
LangchainWhat customers report
Results as the vendor or the customer published them, with the source and the date.
Comet Opik
Langchain
No reviewed story for Langchain yet.
Questions about Comet Opik and Langchain
Which is used more, Comet Opik or Langchain?
Langchain has more customers on usedby: 32 against 17 for Comet Opik.
Do companies use both Comet Opik and Langchain?
Yes. 1 company uses both on usedby, including Autodesk.
Who uses Comet Opik?
17 companies on usedby, each with the public page that shows it. See who uses Comet Opik.
Who uses Langchain?
32 companies on usedby, each with the public page that shows it. See who uses Langchain.
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.