Galileo vs Langfuse: who uses which
Customers, public proof and the companies that use both.
On usedby, 14 companies use Galileo and 17 use Langfuse. 2 companies use both, including Cisco and Twilio. Galileo leads among the Telecommunications companies on usedby that use either tool, Langfuse among the Fintech & Payments companies.Latest check Nov 12, 2026: 31 of 31 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 Galileo, Langfuse, or both
Every company with a public proof for at least one of the two tools.
12
listed for Galileo only
2
companies use both
15
listed for Langfuse only
On usedby, 12 companies are listed for Galileo only, 15 are listed for Langfuse only and 2 use both, out of the 29 companies listed for at least one. An absent listing does not prove non-use.
Where it lands
Recently publicly listed customers
No new public customer listing since tracking started on October 6, 2026.
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, Galileo |
|---|---|
 Cisco | On or before Oct 2025 |
 Twilio | On or before Nov 2025 |
By industry
Which tool the companies on usedby use, by industry. Shares of the companies on usedby that use Galileo, Langfuse or both: a share of the companies on usedby, not of the market.
Listed for Galileo onlyBothListed for Langfuse only
More common with Galileo
- Telecommunications5 of the 5 Telecommunications companies on usedby that use either tool use Galileo, 2 of them alongside Langfuse.
More common with Langfuse
- Fintech & Payments4 of the 5 Fintech & Payments companies on usedby that use either tool use Langfuse.
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.
Vendor facts checked: Galileo, 0 of 4; Langfuse, 0 of 4. Missing facts remain unverified, not absent features.
GalileoLangfuseNo verified public evidence is available for pricing or trust facts yet. A missing value does not mean the vendor lacks the feature.
What customers report
Results as the vendor or the customer published them, with the source and the date.
Galileo
Langfuse
No reviewed story for Langfuse yet.
Questions about Galileo and Langfuse
Which is used more, Galileo or Langfuse?
Langfuse has more customers on usedby: 17 against 14 for Galileo. Galileo leads among the Telecommunications companies on usedby that use either tool, Langfuse among the Fintech & Payments companies.
Do companies use both Galileo and Langfuse?
Yes. 2 companies use both on usedby, including Cisco and Twilio.
Who uses Galileo?
14 companies on usedby, each with the public page that shows it. See who uses Galileo.
Who uses Langfuse?
17 companies on usedby, each with the public page that shows it. See who uses Langfuse.
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.