PolyAI vs Retell AI: who uses which
Customers, public proof and the companies that use both.
On usedby, 18 companies use PolyAI and 32 use Retell AI. No company is listed with both yet.Latest check Oct 8, 2026: 50 of 50 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 PolyAI, Retell AI, or both
Every company with a public proof for at least one of the two tools.
18
use only PolyAI
0
companies use both
32
use only Retell AI
18 companies use only PolyAI, 32 use only Retell AI and 0 use both, out of the 50 companies on usedby that use at least one of them.
Where it lands
Newest customers
No new customer since tracking started on October 8, 2026.
Where it lands
Newest customers
We have not started tracking changes for Retell AI yet.
Who uses both
Companies with a confirmed or observed line on both tools.
Side by side
Facts from our data and from each vendor's public pages. Each line says where it comes from.
PolyAI
Retell AIWhat customers report
Results as the vendor or the customer published them, with the source and the date.
PolyAI
The PolyAI voice assistant is now handling an average of 5,500 calls each week on Simplyhealth’s consumer line.
Simplyhealth
Vendor case study, poly.ai, published Sep 17, 2023
Retell AI
Call handling time reduction in data intake flows: ~3 minutes
Matic
Vendor case study, retellai.com, captured Oct 5, 2026
That’s roughly 200 hours per month we’re getting back
TripleTen
Vendor case study, retellai.com, captured Oct 5, 2026
Questions about PolyAI and Retell AI
Which is used more, PolyAI or Retell AI?
Retell AI has more customers on usedby: 32 against 18 for PolyAI.
Do companies use both PolyAI and Retell AI?
usedby has not found a company with a confirmed or observed line on both PolyAI and Retell AI yet.
Who uses PolyAI?
18 companies on usedby, each with the public page that shows it. See who uses PolyAI.
Who uses Retell AI?
32 companies on usedby, each with the public page that shows it. See who uses Retell AI.
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.