Grok 4.3

Why is this trending?

xAI released Grok 4.3 beta, featuring advanced capabilities like native PDF, spreadsheet, and presentation generation, plus computer use functions under the model name grok-420-computer-use-sa. Elon Musk called it an early beta worth trying, sparking excitement over its rapid iteration from Grok 3 and productivity tools surpassing competitors. Access is limited to SuperGrok Heavy subscribers, fueling debates on its performance without official evals.