@misc{aihist_grok-4-2025,
  title        = {{xAI 发布 Grok 4，主打数学与推理}}
  author       = {{AI 纪年}}
  date         = {2025-07-09}
  year         = {2025}
  month        = jul
  howpublished = {\url{https://aihist.net/e/grok-4-2025.html}}
  url          = {https://aihist.net/e/grok-4-2025.html}
  urldate      = {2026-11-03}
  language     = {zh-CN}
  keywords     = {Grok, 推理, 智能体, 科学}
  abstract     = {xAI 发布 Grok 4，主打数学、推理与实时信息能力，并接入多智能体工作流。它是 xAI 进入前沿模型竞争的核心产品。}
  note         = {AI 纪年静态引用页（EB/OL），构建于 2026-11-03}
}