SpaceX is a defense contractor (I don't mean this in a bad way). When the whole DoD/Anthropic thing flared up, I can guarantee you that SpaceX.ai was the first company invited to take their place as DoD AI provider.

I suspect that they specifically train Grok to be able to work well with military personnel -- speaking the way they speak: brief, to the point, efficient communication. Personally I really like this. Claude sounds like some demented clown from the marketing department.

I like communication that is brief and to the point. The problem is when it is so brief that the point isn't conveyed well.

I don't think it's twitter. My guess would be that it's been trained for conciseness as way to improve token efficiency in the same vein as caveman.