This is SWISS-MODEL Beta server. Modelling hetero-oligomers is now possible!

You can input multiple target sequences for a single modelling job.
Enter the first sequence the normal way with copy and paste, or add a UniProtKB AC, then add another - and another - and another!
You can revert to the stable SWISS-MODEL website clicking here

Appendix B: Modelling Serivices

Please find here a (non exhaustive) list of other homology modelling tools and services