For some common spelling mistakes, Gmail will also offer as-you-type autocorrection.
And for common typos and other grammatical errors, Gmail will add a blue squiggly underline to highlight problem words that should be addressed before hitting the send button. A red line also appears under misspelled words. For errors that do get autocorrected, a dashed line will appear under the corrected text.
Google highlights two groups who could find the feature helpful: those on deadlines and people who speak English as a second language – the feature only supports English currently.
"If you're working against deadlines to write a lot of emails daily, correct spelling and grammar probably isn't top of mind. These capabilities can also help you write and edit with more confidence if you're a non-native speaker," Google notes.
Google will roll out the spelling and grammar assistant over two weeks starting August 20 for G Suite users on rapid-release domains. Those on scheduled release domains should start seeing it on September 12.