Billionaire Elon Musk might’ve just been countersued by OpenAI. But that isn’t stopping his AI company, xAI, from making its flagship Grok 3 model available via an API. It has been several months since xAI unveiled Grok 3, the company’s answer to models like OpenAI’s GPT-4o and Google’s Gemini.  Grok 3 can analyze images and respond to questions, and powers a number of features on Musk’s social network, X, which not-so-coincidentally acquired xAI in March. xAI is offering two flavors of Grok 3 i...