The strut braced constant chord two-spar parasol wing was slightly swept back, and fitted with horn-balanced ailerons.

[2] Unlike most previous Morane-Saulnier designs, the AI's fuselage did not end in a horizontal knife edge, but rather came to a point which extended to the rear of the rudder and elevators.

[3] In addition one undesignated example was built with a wood monocoque fuselage, and fitted with a 130 kW (170 hp) Le Rhone 9R rotary and two 7.7 mm (0.303 in) Vickers machine guns.

In addition to military operators, the Morane-Saulnier AI was popular with French aerobatic pilots and a number carried civil registrations.

[1] The Fantasy of Flight collection in Polk City, Florida has an AI tested by the United States Army Air Service in 1918 at McCook Field in Ohio until being sold off for private use.