Because of how closely the languages of the Jivaroan family are related, they are often thought of as to make up a dialectal continuum, in which Achuar and Shiwiar are related closely enough to be classified under an umbrella term of Achuar-Shiwiar, while speakers of Huambisa are able to distinctly recognize the differences in dialect. Therefore, speakers of Huambisa consider it a distinct language.
Because of the close linguistic connection within the Jivaroan family, these languages are often grouped together as forming a dialectal continuum, where Achuar and Shiwiar are sufficiently similar to be considered under an umbrella term like Achuar-Shiwiar. Huambisa speakers can distinguish between different dialects, thus viewing it as a distinct language.