Inhibitory control regulates behavior, emotions, and cognition, playing a crucial role in environmental adaptation. In Autism Spectrum Disorder (ASD), deficits in this function impact academic and social performance. In Study 1 (n = 82), children and adolescents with ASD (n = 18), Intellectual Developmental Disorder (IDD) (n = 16), and typical development (n = 48) completed the Stroop Victoria (reading inhibition) and the Go/No-Go task (motor inhibition). In Study 2 (n = 97), latent profile analysis identified subgroups within the ASD sample, incorporating the Five-Digit Test (FDT) to assess inhibitory control and cognitive flexibility. In Study 1, children with ASD showed difficulties in the Go/No-Go task, making more errors, whereas their performance on Stroop Victoria was similar to the control group but superior to the IDD group. In Study 2, three profiles emerged: Medium (34 percent), Lower Medium (41 percent), and Below Average (25 percent), the latter showing greater deficits and more comorbidities, such as ADHD symptoms. The performance of the ASD group varied depending on the task and its level of difficulty, highlighting the heterogeneity of inhibitory control in the sample and the influence of age and educational level.