Keep in mind that it is currently an experimental feature, so you might see a few kinks or bugs as you use it. Also, you must be on the new Gmail redesign to get the option to turn Smart Compose on.
To enable Smart Compose, go to Settings -> Smart Compose (under the General tab) -> Writing suggestions on. If you want to turn off suggestions, click to choose Writing suggestions off.
It looks like English is the only language option for Smart Compose, though that might change over time. If you want to wait for a stable release, Smart Compose will roll out for everyone sometime later in May.
Today at Google’s I/O 2018 keynote event, the company revealed Smart Compose, new feature for Gmail rolling out soon. This feature comes just as the company’s started rolling out a new design for Gmail, along with a host of new features.
In a quick demo on stage, it appears Smart Compose is similar to the Auto Complete feature Google uses for online searches. Smart Compose will use machine learning to predict what words and phrases a Gmail user will type next when they compose a new email. They can just hit the “Tab” key to put in the suggested words and keep on typing the message.
The demo showed how Smart Compose can help with cutting down the time it takes to write an email. It automatically generated a user’s mailing address when needed, along with other standard phrases. Google CEO Sundar Pichai joked during the demo that this new feature has caused him to write a lot more emails to employees.
Smart Compose is supposed to roll out to all Gmail users sometime later in May. Stay tuned as we will continue to report on the announcements from the Google I/O keynote address.