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… ...

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 company said its Grok chatbot had also undergone a code update that caused it to share antisemitic messages this week.