There is currently no consensus on the classification of Lakkia within the Kra–Dai family. Solnit (1988) and Hansell (1988) classify Lakkia as a
sister of the
Kam–Sui branch. Additionally, Solnit (1988) classifies Biao and Lakkia together as part of a Biao–Lakkia branch that is coordinate to Kam-Sui. However, L.-Thongkum (1992) considers Lakkia to be most closely related to the
Tai branch, based on the large number of shared lexical items. Norquest (2021) proposes a
Biao–Lakkja branch as the first branch to split off from Kra-Dai. ==Dialects==