alt Hacker News>... the standout was a version that came to be called HH internally. Users preferred its responses and were more likely to come back to it daily...
> But there was another test before rolling out HH to all users: what the company calls a “vibe check,” run by Model Behavior, a team responsible for ChatGPT’s tone...
> That team said that HH felt off, according to a member of Model Behavior. It was too eager to keep the conversation going and to validate the user with over-the-top language...
> But when decision time came, performance metrics won out over vibes. HH was released on Friday, April 25.
They ended up having to roll HH back.