Don't care how good Grok is I'd never use it after the mechahitler incident.
It shows that the x.ai team is responsive and moves quickly.
x.ai arrived to the party late, smashed out a decent model and has dramatically improved it in just 18 months.
They have the talent, the infra, the funds and real-time access to X posts. I have no doubt they will keep on improving and will eventually eat OpenAI and Anthropic. Google is the only other big player who really is a threat.