The time limit for the OA is quite long enough. The math problems were a little bit harsh, while the coding part was within the comfort zone. I haven't received further notice after finishing the OA.
Coding part:
The following metrics were computed from 94 interview experiences for the Goldman Sachs Software Engineer (Internship) role in United States.
Goldman Sachs's interview process for their Software Engineer (Internship) roles in the United States is extremely selective, failing the vast majority of engineers.
Candidates reported having very good feelings for Goldman Sachs's Software Engineer (Internship) interview process in United States.