J-8ACT: In 1988, one J-8II airframe was converted into the J-8ACT an experimental fly-by-wire testbed for the J-10 program. The J-8ACT had a shorter fueslage and a pair of canards were affixed to the side of each intake and replaced older FBW technological demonstrators based on the older Shenyang J-6 and J-8I airframes. To date, no plans for a twin-seat J-8 design have been announced
8III/J-8C: Rumored new build model to be equipped with a canard, fly-by-wire control system, improved radar, and better engines
J-9: Chengdu J-9 was a designation assigned to a Chinese interceptor aircraft that never progressed beyond initial studies.