With all the AI news coming out each week, some of the more significant advancements can be hard to track. Grok 4 Fast is streamlined version of xAI's flagship Grok 4 model released back in July 2025.
Forbes contributors publish independent expert analyses and insights. Anisha Sircar is a journalist covering tech, finance and society. The xAI and Grok logos are seen in this illustration photo taken ...
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