Based on the La-9, the Lavochkin La-11 'Fang' was designed as a long-range escort for the new Tu-4 bombers and was notable for being the last Soviet piston-engined fighter to enter service in an era when most major air forces were transitioning to the jet. Compared to the La-9, the La-11 had increased fuel capacity allowing for greater range but at the cost of a reduced armament limited to three cannons. Other than that, the La-11 retained its predecessor's powerplant (mostly on account of the lack of a suitable replacement) and wing but was generally considered to be deficient in high-altitude combat. Still, it saw combat during various skirmishes against US patrol aircraft over the Baltic Sea and especially during the Korean War where it was successful against low-flying bombers and fighters but ineffective against the B-29. Production ended in 1951 and they were retired shortly after. Other users were China and North Korea which were its major combat operators.

The La-134 prototype (also known as the La-9M) first flew in June 1947 followed by a second La-134D prototype with increased fuel capacity and external drop tanks. Production units were simply designated La-11 with no other variants built.