Musk Reveals Grok 4.8’s Pre-Training Stack is Written in C++ by ‘Humans’, Not AI

Analytics India MagazineSeptember 14, 2026en

Analytics India Magazine

AI Global Wire

He made the disclosure in a post on X, where he said Grok 4.8, a 2.5-trillion-parameter model, is expected to finish training this week and begin reinforcement learning. “Our pre-training software is ...

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