IDH1 and astrocytoma (excluding glioblastoma): Fig. 5a shows an example of the correct classification of the IDH-wildtype (glioblastoma) tumor using the hybrid semi-supervised ResNet50+ViT model, whereas Fig. 5b presents the case when the model is inconclusive between the IDH-mutant, 1p/19q codeleted (oligodendroglioma) and IDH-mutant (astrocytoma).