
Retell AI
Bland AI
Bolna
Smith.ai
Deepgram
Voiceflow
Goodcall
Voice AI Infrastructure for the Internet

Caspy
Google Assistant
Ringbot
Callio AI Phone Concierge
DoNotPay
SmartLens
Personal.ai
An AI assisstant that can talk on the phone 🤖

Which is more popular?
Based on our record, Vapi should be more popular than Google Duplex. It has been mentioned 10 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | vapi.ai | ai.googleblog.com |
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What each product offers, as listed by its team.


No features have been listed yet.
Possible disadvantages
Walkthroughs and reviews on video.
Exploring Vapi A Quick Review - Discuss what is needed to compare to Air.Ai
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Testing Google Duplex LIVE! 😬
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How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Vapi and Google Duplex. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Developers shouldn’t have to guess what happens to their conversations once they hit the platform. With Vapi and Retell, “ownership” often comes with strings attached. SigmaMind AI takes the opposite stance: your data...
Iâd recommend Vapi if you are planning to create advanced AI meeting agents. It is great for creating custom flows and integrates easily with all of your databases, CRMs, and knowledge bases.
Vapi is a San Francisco-based AI Voice Agent Development Agency founded 2023. This company is well-known for its developer-first platform that supports businesses to deploy their own AI voice agents. Vapi is one of...
We have no reviews of Google Duplex yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


A voice AI agent's webhook receives phone numbers, transcripts and summaries of real customer calls, so it needs three things: proof that the request came from the voice platform, a way to cope with the same call arriving several times,... - Source: dev.to / 10 days ago
The Vapi platform helps developers build and deploy voice agents and AI products in Python, React, and TypeScript. It provides two ways to make intelligent voice apps. It's assistant's option allows you to create simple conversational... - Source: dev.to / 9 months ago
It can make/take phone calls[0], but they need to be prompted on the nature of the call, the data they need, and how to collect it. They can also output the results of the call via API. An AI agent from Masterworks recently called me... - Source: Hacker News / 9 months ago
Sounding like AI and being able to actually hold a conversation while in character are two different things though. Some really fancy ones are getting really close. Source: about 4 years ago
For example: https://ai.googleblog.com/2018/05/duplex-ai-system-for-natural-conversation.html. Source: over 5 years ago
I'm working on a game that has an AI narrator talking to the player. I messed around with some filters in Audacity that I don't know how to use until I realized I don't want a stereotypical computer voice, what I'm actually looking for... Source: over 5 years ago
When comparing Vapi and Google Duplex, you can also consider the following products.

API that enables developers to build human-like voice agents
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