In this study, the features of responses of children with autism spectrum disorders (ASD) in comparison with typically developing (TD) children are described. Participants of the study were 37 Russian-speaking children aged 5-11 years: 27 children with ASD and 10 TD children. Methods of linguistic and phonetic analysis were used. It is shown that children with ASD more often do not answer the adult’s questions vs. TD children. Cues of children with ASD are presented by vocalizations, one word, a simple phrase, less often a few simple phrases, complex sentence, yes/no answers. Children with ASD more rarely use adverbs, pronouns, and function words vs. TD children. Words of children with ASD and TD children mainly consist of one or two syllables. Children with ASD less often use words of four and five syllables than TD children; in the speech of children with ASD, words consisting of more than five syllables are not found. Children with ASD are characterized by a lack of formation of some consonant phonemes and substitution of phonemes.