Note
On Google Colab there is a default AMPL Community
Edition license that gives you access to AMPL
with open-source solvers for personal, academic or commercial prototyping use (e.g., HiGHS, CBC, Couenne, Ipopt, Bonmin)
or with commercial solvers from the NEOS Server as described in Kestrel documentation.
In the list modules
you need to include
"gokestrel"
to use the kestrel driver;
"highs"
for the HiGHS solver;
"coin"
for the COIN-OR solvers.
To use other commercial solvers, your license needs to include the commercial solver (e.g., an AMPL CE commercial solver trial).