Mr. Musk’s move to open up the code behind Grok is the latest volley in a war to win the A.I. battle, after a suit against OpenAI on the same topic.

Elon Musk’s artificial intelligence startup xAI will open-source the code for its snarky Grok chatbot “this week,” its billionaire founder said. The move makes Grok’s source… ...

Elon Musk said on Monday that Grok will go open-source this week, just over a week after the Tesla CEO filed a lawsuit against OpenAI.