This was my initial assessment as well. Also note:

> Grok I forgot about until it was too late.

I was surprised by how much I prefer Grok to others. Even its persona is how I prefer it, detailed without volunteering unwanted information or sycophanty. In general I'd use Grok-3 more than 4 which is good enough for common uses.

I suspect that Claude would be best, only if I gave it a long complex task with enough instructions up front so it could grind away on it while I was doing something else and not waiting on it.