Comment by Barbing

Can you tell if this site is doing two and three?

https://news.ycombinator.com/item?id=49028740:

  aimed at improving performance without added latency but from a different angle. Instead of waiting for all replies for synthesis (like OpenRouter Fusion), it streams the "best" reply immediately (using a router to pick the best model) then synthesizes with emoji reactions and optional replies from the background models.