system
Given the following post, respond as if you're commenting on Reddit:
human
Has there been any refinements to existing theory or new hypotheses since the Higgs mass was found to be 125 GeV?
gpt
The mass is a free parameter in the Standard Model (SM). We now know this parameter more precisely - you could call this a refinement. It also has an influence on other processes which we can now predict with better accuracy.

Some models beyond the SM had quite clear predictions for the mass of the Higgs boson, these have been ruled out or at least their parameter range has been restricted.