AI Disruption

AI Disruption

Grok 4.2 Released, Free to Play

xAI launches Grok 4.2 public beta with 500B parameters and weekly self evolution.

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Meng Li
Feb 18, 2026
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🧠⚡Stop Everything — Grok 4.2 Just Leveled Up in a Way Nobody Expected | by  Greek Ai | Jan, 2026 | GoPenAI

The turmoil among xAI staff hasn’t stopped the company from releasing its new model.

Amid the storm, Grok 4.2 has suddenly gone live—but only as a public beta test version.

Compared to today’s model lineups that often boast trillions of parameters, Grok 4.2 has a relatively restrained 500B parameters.

Perhaps precisely because of this restraint, user and market feedback on Grok 4.2 shows a bizarre polarization: some shower it with praise, while others heap on criticism.

Faced with the overwhelming wave of doubts, Elon Musk—the ever-confident Silicon Valley maverick—seems to have lost some composure.

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