Grok expanding into Tesla cars and enterprise partners broadens xAI's distribution.
Roundup of xAI moves: Grok arrives in Tesla vehicles with limits, a Grok AI partner network launches for enterprise expansion, Grok Bot gets Texting and Tasks prep, and Grok API text will be watermarked by default Nov. 7. Musk says Opus-class Grok 4.5 is near.