马斯克的xAI推出Grok 4 Fast：响应速度最高达标准版10倍

Core Insights - Grok 4 Fast offers a significant speed advantage, with user feedback indicating response times up to 10 times faster than the standard Grok 4 model [2] - The model prioritizes speed over complexity, optimizing for quick responses by simplifying outputs, which is beneficial for users needing immediate results [2] - Grok 4 Fast has limitations in creative or detailed tasks, as it compromises on content depth and richness to maintain speed [2] - The model was previously tested under the name "Sonoma" on the Arena platform, indicating prior experimentation and optimization by xAI before its official launch [2] - Currently in the "early access" phase, Grok 4 Fast may eventually be available to free users and could potentially replace the older Grok 3 model [2] Additional Features - xAI has introduced a dedicated "update log" section on the Grok web platform to provide real-time updates on product iterations [3] - Grok 4 Fast is expected to be adapted for mobile applications in the future [3]