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ChatGPT市场份额跌破50%，Gemini和Claude追赶
ChatGPT Is Still Huge, But Rival AI Chatbots Are Catching Up Fast
Sensor Tower's State of AI 2026 report shows ChatGPT's audience share slipping below 50% for the first time, as Gemini's default-app advantage and Claude's Pentagon-fueled rally eat into OpenAI's lead.
更进一步：量化金融体系
看懂新闻只是起点——沿量化金融路径，把它变成能交付的工程能力