Grok 4.20 Stocks: Becoming a God in Stock Trading - 10,000 Dollars Turned into 12,000 in 2 Weeks with a 12% Return Rate, Outperforming GPT-5.1 and Gemini 3.0

In the Alpha Arena 1.5 season, xAI's Grok4.20 model won with a 12.11% return rate, increasing $10,000 to $12,193 in 14 days, becoming the only large language model that generated profit. At the same time, GPT-5.1 and Gemini 3.0 suffered losses of 3.4% and 5.7%, respectively. The competition used a rule without human intervention, requiring the model to trade automatically under the 'ascetic mode' (high leverage restrictions) and the 'situational awareness mode' (can view opponents' holdings).