3 decal variants:
1. Ki-100, 244th Air Regiment, Japan, July 1945
2. Ki-100, 17th Air Regiment, Bakwai AF, Taiwan, Battle of Okinawa, July 1945
3. Ki-100, Akeno Flight Training Division, 111th Air Regiment, Japan, July 1945
A total of 99 of this version was built before production was brought to an end by the growing weight of USAAF air attacks. A more effective version had been planned, to be powered by the Mitsubishi Ha-112 engine which incorporated a turbocharger to improve high-altitude performance, but only three of these Ki-100-II prototypes had been built and flown by the end of the war.