Does the Solvice VRP API learn from past reality?

Example: If one technician takes more time to complete a specific task than another one does, can this be taken into account for the next schedule?

No, our solver does not calculate job duration because it is something that is in the hands of our customers. So calculating the amount of time a technician will spend on a job is done at your side. You are free to change the job duration for every resource and include that in the solve request. That way the solver will indeed use the most realistic job duration.