全球首个AI投资大赛落幕：中国模型全部盈利，美国模型全部亏损

Core Insights - The first AI large model real-time investment competition "Alpha Arena" concluded on November 4, featuring six top models from China and the US, each starting with $10,000 in a real market environment [1][2] - Qwen3-Max emerged as the champion with a return of $12,200, exceeding 20% profit, while DeepSeek v3.1 secured second place with a net value of $10,490, making them the only two profitable models [2] Group 1 - The competition was initiated by Nof1 on October 18, involving models such as DeepSeek v3.1, Qwen3-Max, GPT-5, Gemini2.5Pro, Claude Sonnet4.5, and Grok4 [1] - In the early stages, DeepSeek v3.1 led the competition, attracting significant international attention, while Grok4, backed by Elon Musk, narrowed the gap to just $1 at one point [1][2] - A turning point occurred between October 21 and 22, when Grok4 and Claude Sonnet4.5 experienced significant losses, leading to a day where all six models reported negative returns [1][2] Group 2 - Following the losses of other models, DeepSeek v3.1 and the previously underperforming Qwen3-Max adjusted their investment strategies, resulting in a rise in their net value [2] - The competition ultimately became a contest between Qwen3-Max and DeepSeek v3.1, with both models frequently exchanging the lead [2] - The four US models, including GPT-5, Gemini2.5Pro, Claude Sonnet4.5, and Grok4, ended up with losses, with GPT-5 suffering a decline of over 60% [2]