The capability of CHO cells ranges from high mannose structures to fucosylated complex N-glycan structures with up to multiple antennae. A general characteristic is a high sialylation in α2,3 linkage. For GEX cells comparably lower amounts of high mannose are observed. The capping of N-glycans with sialic acid can be adjusted by chosing a different GEX cell line. Process parameters during production are adjustable tAn RCB can be obtained already after 16 or 20 weeks for the CHOnamite and GEX platform, respectively. Depending on the customer’s requirement on clonality a second cloning round might be needed which takes 6-8 more weeks.