There are many versions of Polymath 6.X that are available to users. These are identified on the main Polymath menu page. The following capabilities apply to Polymath 6.X and depend on the particular version:
| Module | Limitation | Student Versions | Professional Version |
| POLYMATH | Min # of represented digits | 9 | 8 |
| POLYMATH | Max # of represented digits | 20 | 22 |
| LEQ | Max # of simultaneous linear equations | 100 | 264 |
| NLE | Max # of simultaneous nonlinear equations | 15 | 300 |
| NLE | Max # of simultaneous explicit equations | 35 | 300 |
| DEQ | Max # of simultaneous differential equations | 25 | 300 |
| DEQ | Max # of simultaneous explicit equations | 35 | 300 |
| DEQ | Max # of intermediate data points | 151 | 1200 |
| REG | Max polynomial regression degree | 5 | 12 |
| REG | Max nonlinear regression model variables | 60 | 60 |
| REG | Max nonlinear regression independent variables | 60 | 60 |
| Data Table | Max # of rows (data points) | 301 | 1001 |
| Data Table | Max # of columns | 50 | 200 |