> 4 seems a little better than 3.5 but not by a huge amount. Depends on the task. 3.5 was completely incapable of doing math, but 4 seems to be able to at a so

> 4 seems a little better than 3.5 but not by a huge amount. Depends on the task. 3.5 was completely incapable of doing math, but 4 seems to be able to at a solid highschool graduate level.