KAI released new images of the first KF-21 prototype undergoing the final assembly process in January 2021. Note that this image also provides a good view of the second prototype, which is being built by KAI personnel in the background.

Korea Aerospace Industries (KAI) officially unveiled the first KF-21 Boramae prototype, serial 001, during a ceremony at its Sacheon facility in South Korea's South Gyeongsang province on April 9, 2021.

A concept image depicting two KF-21 s in flight. The distant aircraft provides a good view of what the two-seat variant will look like