The jet airliner with which this aircraft, that the General Electric GE9X engine is being developed for, was intended to compete has 280 to 366 seats and 4 bathrooms..
 It is intended to compete with the Airbus A350. 
 Its variants seat 280 to 366 passengers in typical three-class seating layouts. 
The General Electric GE9X is a high-bypass turbofan aircraft engine under development by GE Aviation for the Boeing 777X. 
