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.

Grok 3 is "scary smart," according to Elon Musk, and is "an order of magnitude more powerful than Grok 2."

Elon Musk 's AI firm, xAI, has been accused by an OpenAI employee of releasing deceptive benchmark results for Grok 3. The controversy started when xAI shared a graph on its blog, showing Grok 3's performance on AIME 2025. The test is a compilation of math problems from a recent mathematics exam.

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.

Elon Musk has announced that Grok 3, the latest AI model from xAI, will be available for free temporarily. The advanced model promises improved reasoning and language comprehension. Users can access it via X,

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”.