F500 is exactly the kind of scale where I fully expect support agents to be developed in house. They'll try Fin. Then one day, a single dev inside the company demos a custom agent that outperforms Fin and cost almost nothing.
replytech forward f500 is possible (but.. even anthropic used fin)
replymost f500s are going to outsource. i think sierra is already at 40% of the f50? and each of those deals they have to compete against teams of inhouse engineers and convince execs to buy instead of build
the reality is agents at scale is a hard problem and most f500 engineers are not equipped to solve it