Skip to main content

What is Google Duplex? The smartest chatbot ever, explained

Human-sounding Google Duplex arrives on wide range of devices in the U.S.

The world’s introduction to Google Duplex — technology both impressive and a bit on the creepy side — featured a human-sounding robot having a conversation with a person who couldn’t even tell that they were talking to a robot. The demo during Google I/O 2018 freaked some people out, but it impressed our Mobile editor, Julian Chokkattu, who got a chance to try out Duplex recently.

Google Duplex is a big leap in the evolution of artificial intelligence (A.I.). No, it won’t lead to human-like robots that can do the laundry or go shopping like in the movie I, Robot (at least not anytime soon). But Google Duplex is a huge step in terms of A.I.’s ability to more naturally converse with humans. But what is it exactly?

When is Google Duplex coming out?

In October 2018, Google announced that Duplex functionality would start rolling out to Pixel phones in November 2019 on a city-by-city basis, starting with New York City. Now, however, the company has noted that the tech is far more available. In a blog post, the company announced that Duplex is available on all Pixel phones in as many as 43 U.S. states. Now, Duplex has grown beyond the confines of Google’s Pixel range, and as of April 2019, you can now use Google Duplex on a wide range of Android and iOS devices in the U.S.

According to Google’s support site for Duplex, Android phones running Android 5.0 Lollipop and above will have access to Google Duplex via the Google Assistant. For iOS devices, you need to have the Google Assistant app installed on your phone, but the process functions in much the same way. There’s no word on when international markets will begin receiving Duplex.

Google Duplex on an Android phone

What exactly is Google Duplex?

“A long-standing goal of human-computer interaction has been to enable people to have a natural conversation with computers, as they would with each other,” wrote Google Principal Engineer Yaniv Leviathan and Vice President of Engineering Yossi Matias, in a May 2018 blog post announcing the technology.

For years, businesses have been trying to create a way for people to have conversations with computers. Almost every time we call a business, we encounter an automated phone system. We have virtual assistants on our phones and virtual assistant-powered speakers in our homes. But although these computer systems can be helpful, they have their shortcomings.

In a blog post, Google notes that one of the biggest problems with these systems is that the user has to adjust to the system, instead of the system adjusting to the user. Think about all of the times you have to repeat yourself when you’re on the phone with an automated system, or all of the times that a virtual assistant hears something different than what you actually said.

Google Duplex helps with these problems by allowing the computer to have a natural conversation with a human. The A.I. system adjusts to the person, instead of the person adjusting to the system. Therefore, the person can speak normally, just as they would if they were speaking to another person. Google Duplex also makes it so the computer system sounds like a human. It uses a natural tone, as well as words and phrases like “um” and “uh,” just like a person would. During a conversation, the A.I. system can also handle interruptions and elaborate.

At the center of Google Duplex is a recurrent neural network that was built using a machine learning platform called TensorFlow Extend (TFX). When the system makes a phone call, it is pretty much indistinguishable from a live human being. You can hear Google Duplex scheduling an appointment and holding a phone conversation below.

What can Google Duplex do for you?

The main thing Google Duplex will be able to do for you is handle some of your busy work. It can make calls on your behalf, schedule appointments, or call to check the hours of operation at a business, for instance. Now, it can’t make that uncomfortable break-up call for you, but it can reserve you a table at a participating restaurant or call and make you an appointment at a hair salon. For instance, if you tell Google Assistant you want to go to a specific restaurant at 7 p.m. on Friday, the system will call and make a reservation for you and then notify you when it’s confirmed.

A few potential applications for Google Duplex

Imagine calling the cable company and dealing with an automated system that sounds and operates exactly like a human — one that can actually help you. There would be no more annoying IVR systems that tell you to “press 1 for billing questions or press 2 for technical issues.” Imagine if the IRS had this A.I. technology. During tax season, you wouldn’t have to wait an hour on hold for a representative because you could ask the A.I. system your tax-related questions.

Businesses such as doctors and lawyers who regularly schedule clients could have the A.I. do that on their behalf. Small businesses can also benefit, as research shows that 60 percent of small businesses that rely on customer bookings don’t have an online booking system, according to Google’s blog.

Concerns about Google Duplex

Many people have expressed concerns about Google Duplex. Aside from the fact that it’s a bit creepy, some people are worried about privacy and security. Is it secure to have a computer calling businesses and speaking to live people on your behalf? Is it secure for the person on the other end of the line? Others have concerns about the potential impacts on advertising, and some people even worry about how quickly the A.I. is evolving. Google Assistant just came out a couple of years ago, and now it already sounds like an actual human on the phone.

Google addressed a couple of these issues during our recent demo with the service. At the beginning of the call, Google Assistant identifies itself and also notes that it’s recording the call. That might make a restaurant owner take pause on having the conversation until the service become more widely used.

Updated on April 3, 2019: Google Duplex is now available on a wide range of Android and iOS devices in the U.S.

Editors' Recommendations

Erika Rawes
Smart Home Evergreen Coordinator
Erika became a professional writer in 2010, and her work is published all over the web on sites ranging from USA Today to…
Are robotic pool cleaners worth it?
The Airper Seagull SE robotic pool cleaner at the bottom of a swimming pool.

The worst part of owning a swimming pool is taking care of it From filter maintenance and skimming debris from the surface to managing chemicals and more, you'll likely find yourself hanging out around the water more often than you're actually in the water. Robotic pool cleaners are designed to alleviate this pinch point of pool ownership by giving you back your time and automating most of your tasks.

But are robotic pool cleaners worth it, or are they a gimmick that still require heaps of manual input? Here's a closer look to help you decide if one would be a good addition to your backyard.
Budget-friendly devices are often a hassle

Read more
Best Buy cut this air fryer’s price in half, down to just $25
The Bella Pro Series 3 Quart Air Fryer near food.

If you want your food crispy all over without having to deal with draining a ton of oil, your best bet is to use an air fryer. They're never too expensive and there are always great air fryer deals going on, but you'll rarely find one with a price like this. Right now, the Bella Pro Series 3 Quart Analog Air Fryer is half off, moving its price from $50 to $25. To pick yours up today all you need to do is tap the button below. If you're interested in our take, however, be sure to keep reading.

Why you should buy the Bella Pro Series 3 Quart Air Fryer
The Bella Pro Series 3 Quart Air Fryer holds up to about 2.5 pounds of food, heats up to 400 degrees, and has easily-removable dishwasher-safe parts. If you notice it is "analog" that is because it has a 60 minute shut off timer to give you peace of mind and an easy way to time your cooking. Of course, this means there aren't a ton of digital options, buttons, and settings. However, this can be a plus for some and possibly you. Not every item in the home needs to be "smart" and less can certainly feel like more.

Read more
Revolution Cooking’s high-speed smart toaster is $100 off today
Someone using the Revolution Cooking InstaGLO R180 smart toaster in the kitchen.

If you're thinking about getting a new toaster for your kitchen, why not go with a high-speed smart toaster? Best Buy is currently selling the Revolution Cooking InstaGLO R180 smart toaster with a $100 discount, slashing its price to $250 from $350 originally. There's no telling how much time is remaining before this offer expires though, so if you're interested, it's highly recommended that you proceed with the purchase right now in order to secure the savings.

Why you should buy the Revolution Cooking InstaGLO R180 smart toaster
Are smart kitchen gadgets worth it? The answer is a resounding yes, and the Revolution Cooking InstaGLO R180 smart toaster will show you why. With this kitchen device, you'll no longer suffer from burnt or uneven toasts as it's powered by the brand's InstaGLO heating system. The technology will start toasting your bread in just two seconds without any need for preheating. You'll get bread that's crunchy outside and moist inside every single time, which is a huge upgrade over the inconsistencies of traditional toasters.

Read more