On Support reply, Sonnet 5.5 has the strongest resolution rate this week at 68.8%, 6.8 points above Origin (62.0%). Its helpful answer rate is also the highest at 62.3%. Keep the current 60/20/20 split for two more days, then promote Sonnet 5.5 if the lead holds.

Mostly, yes. Cost per resolution is $0.0438 for Sonnet 5.5 versus $0.0370 for Origin, about 18% higher, but it has fallen from $0.0535 at the start of the week. For every 100 conversations, Sonnet 5.5 resolves about 7 more for roughly $0.70 extra. Promote it on Support reply first and keep Gemini 3.8 ($0.0315) as the lower-cost fallback.