Pick the one closest to what is actually costing you, or send us the problem and we will tell you which one fits.
We look at how your teams really ship: where the time goes, where the money goes, and which part of the pipeline everyone quietly works around.
SLOs you would defend in a review, alerts worth waking up for, and incident write-ups that change the system instead of the roster.
Getting models into production and keeping them there, with evals you trust and a cost budget agreed up front.
Architecture for the load you have now and the team you have now, written down and then actually built.