Arena 宣布完成由 Lightspeed 领投的 2 亿美元 B 轮融资，估值 31 亿美元。引用内容称其年化收入已超 1 亿美元，数百万用户通过真实使用帮助评估前沿模型；Arena 同时推出 Alignment Index，衡量 AI 行为在真实场景中与人类价值的契合程度。
融资信息附带营收规模和新发布的 Alignment Index，读者可以据此了解模型评测赛道的资本动向。
感谢 @lightspeedvp 与我们同行，共同打造下一步！
我们很兴奋地加倍投资 @arena 的 2 亿美元 B 轮融资。 随着 AI 模型数量激增，了解它们在现实世界中的实际表现正变得越来越重要。 Arena 还推出了其 Alignment Index，用于衡量 AI 行为在现实环境中与人类价值观的一致程度，这有助于实现 Arena 的使命——通过使用 AI 的人的体验来衡量 AI。 我们最初在种子轮就与这个团队合作。自他们的 A 轮以来，Arena 的年化收入已超过 1 亿美元，数百万人通过现实世界中的使用帮助评估前沿模型。 这种增长印证了我们最初的投资论点：模型越多，关于其表现的独立信号就越有价值。 祝贺联合创始人 @ml_angelopoulos、@infwinston 和 @istoica05。随着模型竞赛愈发拥挤，Arena 的工作正变得越来越有趣。 CC: @buckymoore, @jamesalcorn94, @ravi_lsvp, @prathikhosalli
原文
We’re excited to double down for @arena’s $200M Series B. As AI models multiply, knowing how they actually perform in the real world is becoming increasingly important. Arena is also launching its Alignment Index, which measures how closely AI behavior aligns with human values in real-world settings, contributing to Arena's mission to measure AI through the experience of people who use it. We first partnered with the team at the seed. Since their Series A, Arena has exceeded $100M in annualized revenue, with millions of people helping evaluate frontier models through real-world use. That growth reinforces our original investment thesis that the more models there are, the more valuable independent signals about their performance become. Congratulations to co-founders @ml_angelopoulos, @infwinston, and @istoica05. As the model race gets more crowded, Arena’s work has been getting even more interesting. CC: @buckymoore, @jamesalcorn94, @ravi_lsvp, @prathikhosalli
来源：Arena.ai · x.com