It is spoken by only a couple of the small Ofayé people, though language revitalization efforts are underway.

Grammatical descriptions have been made by the Pankararú linguist Maria das Dores de Oliveira (Pankararu),[2] as well as by Sarah C. Gudschinsky[3] and Jennifer E. da Silva, from the Universidade Federal do Mato Grosso do Sul.

Guachi, spoken on the Vacaria River in Mato Grosso do Sul, is a dialect.

[4] Jolkesky (2016) notes that there are lexical similarities with the Macro-Mataguayo-Guaykuru languages due to contact.

[2]: 42 Loukotka (1968) lists the following basic vocabulary items.