Updated Jun 6, 2025, 4:00 p.m. Published Jun 6, 2025, 3:53 p.m. Shayne Coplan, CEO of Polymarket, speaks at Consensus 2024. (Shutterstock/CoinDesk). What to know: Polymarket and Elon Musk's AI firm xAI announced a partnership, making Polymarket the official prediction market partner for xAI and X. Shayne Coplan, CEO of Polymarket, highlighted the collaboration as a union of two leading truth-seeking platforms. The announcement followed a public disagreement between Musk and President Trump over national debt and a new spending bill. Crypto prediction market Polymarket and Elon Musk-led artificial intelligence (AI) firm xAI — which owns X, the social media platform formerly known as Twitter — announced a partnership on Friday. Proud to announce Polymarket's partnership with X and xAI as their Official Prediction Market Partner," Shayne Coplan, the prediction platform's CEO, posted on X. STORY CONTINUES BELOW