The dance duo, made up of Andy Cato and Tom Findlay, will finish performing together as a full live band after their UK and Australia tour dates, but will continue to DJ and produce.
They said in a statement: "We've crossed and re-crossed the world with this band and crew. There's no other team like it. With their help, GA live became the sound of legendary nights from Mount Fuji to Moscow.
"It's not often in the spotlight maybe; but ask the people who have come and filled the tents and surrounded the stages for the last decade. A massive thanks to all of them, for staying with us on a journey from Richie Havens to Saint Saviour."
The band's seventh studio album Black Light peaked at number 26 on the UK album chart in the spring. An album of live remixes from the LP, called White Light, is due out later this year.