Yi-1.5-9B looks like new king of the small dense models by quite a way, I guess llama3-8B was only a toy for meta since they don't bother with neat 34B sizes anymore.
Yi-1.5-Large (<99B?) was not released today as it is reserved for their upcoming API. The claim is solid llama3-70B/Gemini-1.5-pro superiority and probably big context they are known for.