A chat window for chatbot Grok. Musk’s artificial intelligence venture, xAI, is moving with urgency to boost revenue by selling chatbot subscriptions and access to its computing resources before SpaceX’s expected IPO next month. | BLOOMBERG

Billionaire Elon Musk’s xAI has recruited multiple Wall Street firms with ties to his business empire to test its Grok chatbot, according to people familiar with the matter, part of a push to bolster revenue ahead of parent company SpaceX’s initial public offering.

Apollo Global Management and Morgan Stanley have begun using Grok internally alongside software from other AI model makers, said the people, who spoke on condition of anonymity as the information is not public. Valor Equity Partners is also using Grok, the people said.…