Retell AI vs Vapi

Side by side on what is actually measured: monthly searches for each name, the 3-month trend, and pricing. A cell is highlighted only where one tool is genuinely ahead.

Retell AI and Vapi compared on the figures this directory actually measures: pricing, category, and real monthly search demand for each name. Retell AI is the more searched of the two: about 21,232 searches a month against 20,698 for Vapi, a narrower gap than it looks. Both are listed as freemium.

Search volume says how many people look for a tool by name, which is a reasonable proxy for how established it is. It says nothing about which one suits your work. The table below sets out what each is for, and each tool's own page covers its features, pricing tiers and the cases it handles badly.

Tagline
Voice agent SDK.
Voice agent API.
Pricing
Free plan
Free plan
Starting price
N/A
N/A
Search trend (3 mo)
+13.8%
-0.3%
Rating
No reviews yet
No reviews yet
Upvotes
N/A
N/A
Verified
Categories
Voice, AI Agents
Voice, AI Agents
Website
retellai.com
vapi.ai

More about Retell AI

Voice agent SDK.

Read the Retell AI review

More about Vapi

Voice agent API.

Read the Vapi review

Frequently asked questions

Retell AI or Vapi, which is better?
Neither is better in general. Retell AI is searched for more often, which reflects how established it is rather than how well it would suit you. Compare them on the table below and on what each one is specifically not good at, which is on their individual pages.
Is Retell AI or Vapi cheaper?
Both are listed as freemium. Exact tier prices are on each tool's own page, taken from the vendor's pricing page.