The subject matter of the texts suggests that Tocharian A was more archaic and used as a Buddhist liturgical language, while Tocharian B was more actively spoken in the entire area from Turfan in the east to Tumshuq in the west.
Glavna tematika kojom se bave tekstovi sugerira da je toharski A bio arhaičniji i korišten kao budistički liturgijski jezik, dok je toharski B bio aktivno govoren na cijelom prostora od Turfana na istoku pa sve do Tumshuqa na zapadu.