AI owner Elon Musk made some big claims about Grok’s capability, saying it was “better than PhD level in every subject.” ...

X CEO Linda Yaccarino said she's stepping down after two bumpy years running Elon Musk's social media platform.

Tech billionaire Elon Musk's artificial intelligence company xAI on Wednesday unveiled Grok 4, its latest AI model.

Comet is based on Chromium and uses Perplexity as its search engine. The web browser with integrated AI assistant initially reserved for Perplexity Max users.