Ryan Wang 🇹🇼
@ryanwang · Jun 29, 2026
xAI is undertaking a major overhaul of Grok’s training and inference software stack. The core of this transformation is rewriting the entire system from high-level frameworks into C/C++, drastically eliminating intermediate abstraction layers, and performing exact mapping
Elon Musk@elonmusk· Jun 29, 2026@aaronburnett Truly massive gains will come in ~3 months when the entire training and inference stack is written in C/C++ and massively simplified (most software layers will be deleted completely) and we exact-map Grok to work incredibly well on a GB300
Elon Musk
@elonmusk
In some cases, where we don’t have access to the source code, eg network switch software, we are also decompiling and modifying the binaries to improve performance
10:08 AM · June 29, 2026 · 714.9K views
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