xAI have made an incredible comeback
From the days of Grok 4 -> 4.3, where they were trailing the frontier by far, they're now arguably the 3rd best lab in the world - behind only Anthropic and OpenAI
And with this minor version jump yielding +5 on AA's Intelligence Index, and Grok 4.7 only a matter of weeks away, they could realistically overtake either of them as they scale up and their release cadence gets ever shorter