Ramp AI 指数：企业 AI 使用量上升但支出下降
原标题：Businesses are using more AI and paying less for it, Ramp AI Index shows
AI 摘要
Ramp 经济学家 Ara Kharazian 发布的 Ramp AI Index 显示，美国企业 AI 使用量自 7 月支出峰值以来增长约 50%，并在 9 月底创下新高，但支出却在下降。Kharazian 将支出下降几乎完全归因于 OpenAI 与 Anthropic 之间的竞争，以及顶级模型降价和更便宜高效的标准版、轻量版模型。9 月最后一周，Anthropic 占 token 支出的 51%，OpenAI 占 44.5%，开源模型在企业支出中占比仍不足 5%。该指数基于 7 万多家美国公司的交易数据，仅覆盖 API 支出且偏向大型 AI 客户。
正文节选
Businesses are using more AI and paying less for it, Ramp AI Index shows US companies are spending less on AI, according to the latest Ramp AI Index from Ramp economist Ara Kharazian. He points to price cuts on top models and to cheaper, more efficient standard and lite models. Kharazian says the drop comes almost entirely from competition between OpenAI and Anthropic. Usage has climbed about 50 percent since spending peaked in July and hit a record high at the end of September. Open-source mode