机器之心报道

编辑：张倩、陈萍

Andrej Karpathy 又离职了！

刚刚，AI大牛Andrej Karpathy官宣了一条重要消息：他昨天已经从OpenAI离职，不过这中间没有什么戏剧性冲突，他只是想去尝试一下自己的个人项目。

Karpathy在官宣离职的推文中写道，「是的，我昨天离开了OpenAI。首先，没发生什么特别的事情，这不是由于任何特定事件、问题或者争议导致的（但请继续提供阴谋论，因为它们确实很有趣 :））。实际上，在过去的大约一年时间里，在OpenAI的经历真的很棒——团队非常强大，人们非常棒，路线图也非常令人兴奋，我认为我们都有很多可以期待的。我的近期计划是致力于我的个人项目，看看会发生什么。那些关注我一段时间的人可能会对此有所了解。」

对于外界来说，Karpathy的这一举动有些突然，因为这距离他第二次官宣加入OpenAI仅有一年。在这一年的时间里，OpenAI变得愈发炙手可热，对AI人才的吸引力也是与日俱增。看来，这一切对于Karpathy还不够有吸引力。

在Karpathy帖子的评论区，确实出现了一些比较有意思的「阴谋论」，比如有人说他是被马斯克派到OpenAI当间谍的，现在是时候回去了。

Andrej Karpathy个人经历

2005-2009 年，Andrej Karpathy 本科就读于加拿大多伦多大学，主修计算机科学与物理，辅修数学。在这里，他第一次接触到深度学习，聆听 Hinton 的课程。

2009 -2011 年，Karpathy 硕士就读于加拿大不列颠哥伦比亚大学，其导师为计算机科学系教授 Michiel van de Panne，主要研究物理模拟中用于敏捷机器人的机器学习。

2011-2016 年，Karpathy 博士就读于斯坦福大学，师从著名 AI 学者李飞飞，专注于研究卷积 / 循环神经网络以及它们在计算机视觉、自然语言处理和交叉领域的应用。期间，他设计并担任斯坦福首个深度学习课程《CS231n：卷积神经网络与视觉识别》的主要讲师。

与此同时，Karpathy 还有三段实习经历。2011 年，他进入发展初期的谷歌大脑实习，致力于视频领域的大规模无监督学习。之后的 2013 年，他再次在谷歌研究院实习，从事 YouTube 视频的大规模监督学习。2015 年，他在 DeepMind 实习，参与深度强化学习团队的工作。

目前，在 Google Scholar 上，Karpathy 的论文引用数达到了 62969。其中，引用第二多、他作为一作的论文《Large-scale Video Classification with Convolutional Neural Networks》被收录为 CVPR 2014 Oral。

Karpathy 是 OpenAI 的创始成员和研究科学家。在OpenAI创立仅一年多后，2017 年，Karpathy 接受马斯克的邀请加入特斯拉，接替了当时的特斯拉 Autopilot 负责人、苹果 Swift 语言、LLVM 编译器之父 Chris Lattner。

五年里，Karpathy 一手促成了 Autopilot 的开发。随着特斯拉从最开始的自动驾驶慢慢扩展到更广泛的人工智能领域，Karpathy 也被提为特斯拉的 AI 高级总监，直接向马斯克汇报工作。

Karpathy 于2022年 7 月离开特斯拉。在后续的访谈中，他说这是一个艰难的决定。虽然特斯拉还未完全实现自动化驾驶，但研发团队已经可以自行发展。这次离职也给他一个机会，去重新审视自己对于人工智能、开源和教育的热爱。

离职八个月后，2023年2月，Karpathy宣布自己再次加入 OpenAI。

在此期间，Karpathy除了完成OpenAI的研究工作，还做了一些个人项目，包括录制教育视频、开发关于Llama 2的开源项目——llama2.c等，详情见扩展阅读。在离职之后，这些工作还将继续。Karpathy表示，新的视频已经在制作了。

这次的离开，相信 Karpathy 重新找回了自己的热情所在，我们也期待 Karpathy做出更多惊艳的研究成果。

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