He's using a massive number for Opus to make Grok look good “for its size”.

If he said something praising Anthropic and like “Grok is 7T, while Opus is better while being only 5T, we need to work harder” or something then maybe I could believe it. But here it's a context where he has all the incentives to inflate Opus' size to make himself look somehow “in the race” when he really isn't despite the money and compute advantage.

Given this tweet I wouldn't be surprises if Grok was actually 1T and Opus being in the same ballpark.

And I'm absolutely not buying current-days Sonnet being a 1T parameters model (that's an absolutely deranged take: that would make Anthropic already behind Chinese model makers, which I think isn't something anyone would put money on).