Maciej Mikuła
@maciekmikula · Sep 14, 2026
We’ve built the fastest training stack in the world.
Elon Musk@elonmusk· Sep 14, 2026@techdevnotes Grok 4.8, which is a 2.5T model trained with our new C++ software stack, will finish training this week and start RL
Elon Musk
@elonmusk
True
10:15 AM · September 14, 2026 · 85.8K views
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