Grok 4.8 就在眼前。
SpaceX AI 的 RL 和 inference infra 全部重写。
马斯克对训练技术细节描述的太准确了，像是一名专业的模型训练人员说的话。在这样的老板手下干活，啥鱼也别想摸了咱们这边就是说。
xAI rewrites RL and inference stack in C/C++ for Grok 4.8
AIElon Musk says xAI dumped JAX and SGLang and rewrote its entire RL and inference stack from scratch in C/C++. Pre-training for Grok 4.8 is finished and the model is now in RL, with evals starting to climb. A soft rollout to Bot users is planned for later this week.
Dongxi NLPVerified on X
@dongxi_nlp
We have dumped JAX/SGLang and rewritten the entire RL and inference stack from scratch in C/C++, which took some extra time. Training (aka pre-training) is done. Lot of cleanup was needed on the SFT data to get that mostly right. Now, 4.8 is in RL and the evals are starting to climb. We will do a soft rollout to Bot users later this week and see how it goes. Grok 4.8 will bear no resemblance to 4.7 (thankfully). It is not yet incredible, but, this time, the foundations are built right, so I expect it to evolve to be something special.View quoted post on X