Mozilla报告：中国开源模型仅落后美国前沿模型4.4个月
Exclusive: Paying for frontier AI models buys 4-month head start at 5x the cost
The performance gap between frontier AI models from US tech companies and the best open-weights models from Chinese companies has closed to just 4.4 months, according to a Mozilla report. That explains why many companies are shifting to the significantly cheaper open models for routine work—and helps reveal a narrow band of workloads where frontier models are worth the cost.
根据 Mozilla 的一份报告，美国科技公司的前沿 AI 模型与中国公司最佳开放权重模型之间的性能差距已缩小至仅 4.4 个月。这解释了为何许多公司转向成本显著更低的开放模型来处理常规工作——同时也揭示了一小部分值得为前沿模型支付额外费用的特定负载场景。
Most organizations should ideally be using open models as the default for the majority of their work, according to the latest State of Open Source AI report from Mozilla, published on September 15 and shared with Ars prior to publication. The report highlights how a leading open model, Moonshot AI’s Kimi K3, achieves a composite AI performance score on the Artificial Analysis Intelligence Index that is just three points behind Anthropic’s Fable 5 closed frontier model, all while costing just 30 percent of the latter.
Mozilla 于 9 月 15 日发布的最新《开源 AI 现状》报告中指出，大多数组织理想情况下应将开放模型作为其大部分工作的默认选择，该报告在发布前已提供给 Ars。报告强调，领先的开放模型 Moonshot AI 的 Kimi K3 在 Artificial Analysis Intelligence Index 上的综合 AI 性能得分仅落后于 Anthropic 的 Fable 5 封闭前沿模型三分，而其成本仅为后者的 30%。
“Closed earns its premium in a few places: expert professional work, high-intensity retrieval, and long context,” Raffi Krikorian, chief technology officer at Mozilla, said in an email to Ars. “We see the decision to pay for closed as workload-specific rather than organization-specific.”
“封闭模型仅在少数领域能证明其溢价合理性：专家级专业工作、高强度检索以及长上下文处理，”Mozilla 首席技术官 Raffi Krikorian 在回复 Ars 的邮件中表示。“我们认为是否付费使用封闭模型应取决于具体负载类型，而非整个组织的统一决策。”
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