Elon Musk’s artificial-intelligence company xAI unveiled an improved version of its Grok chatbot and the model that powers it late Monday, marking his latest effort to catch up with established competitors including OpenAI.

According to xAI’s blog, Grok 3 leverages Test-Time Compute at Scale (TTCS), a specific implementation of test-time scaling, to power its reasoning. This machine learning strategy enables the A.I. model to dynamically adjust computational resources, ensuring higher accuracy for complex queries while maintaining speed for simpler tasks.

Musk says the development of Grok is driven by a need to understand the universe and is a "maximally truth-seeking" artificial intelligence.

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Elon Musk’s startup xAI announced the Grok 3 AI models, which he claims are “the smartest AI on Earth.” The company posted the launch event video on February 18, 2025, demonstrating the AI’s ability to perform sophisticated reasoning.

On Tuesday, February 18, Elon Musk’s xAI launched its latest flagship AI model, Grok 3, with enhanced capabilities. Grok 3 is a significant upgrade to Musk's AI models, which have been developed as an alternative to similar models like OpenAI’s GPT-4 and Google’s Gemini.

Dubai: Elon Musk has made Grok 3, the latest and most advanced artificial intelligence model from xAI, available for free to all users. Previously exclusive to Premium Plus subscribers on X (formerly Twitter),

Elon Musk has launched Grok 3, claiming it to be the smartest and most sarcastic AI. It answers “almost anything”.