Elon Musk's xAI has scored an early win for real-world AI monetization after its Grok 4.20 model outperformed rivals from OpenAI and Alphabet Inc.'s (NASDAQ:GOOG) (NASDAQ:GOOGL) Google in a live stock trading competition.Grok 4.20 Tops Alpha Arena Live Trading LeaderboardGrok 4.20, an artificial intelligence model developed byMusk-led xAI, emerged as the top performer in Alpha Arena Season 1.5, a competition that pits AI models against each other in live stock trading using the same starting capital.Accordi ...