Xai’s Grok 4.1 Fast offers elite math capabilities at 29× lower cost than GPT-5.2

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xAI has released Grok 4.1 Fast, boasting elite math performance at a cost significantly lower than GPT-5.2, promising advanced mathematical reasoning at a fraction of the price. This launch follows xAI’s strategy of improving efficiency in its AI offerings, as demonstrated by their focus on optimizing Grok’s capabilities for complex reasoning tasks. Elon Musk has been promoting Grok’s new features, including its enhanced voice interaction capabilities, to increase user engagement.

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