精选理由
Musk 说 Grok 4.5 私测版已经接近 Opus，而且后面每月都会出新模型，想追动态可以瞅一眼。
Grok 4.5 基于 xAI 的 1.5T V9 基础模型，并使用 Cursor 数据进行补充训练。该版本目前已在 SpaceX 和 Tesla 内部私测。早期评估显示其性能接近甚至超过 Opus。RL 训练仍在持续改进模型，Grok Build 工具每日提升。xAI 计划今年每月发布完全从头训练的新模型。
原文 · @elonmusk
Grok 4.5, based on our 1.5T V9 foundation model, w…
Grok 4.5, based on our 1.5T V9 foundation model, with Cursor data added in supplemental training, is now in private beta at SpaceX & Tesla. Early evals show performance close to, perhaps exceeding Opus.
RL is continuing to significantly improve the model, and the Grok Build harness gets better every day.
Nice work by all those involved!
Completely trained from scratch new models will be released by @SpaceX every month this year.