Grok 3 is now the most powerful AI model and you can try it for free

Elon Musk's AI company, xAI, has officially launched its latest flagship AI model, Grok 3. Released late on February 17, 2025, Grok 3 introduces significant advancements over its predecessor, Grok 2, and aims to compete with leading AI models such as OpenAI's GPT-4o and Google's Gemini. The rollout includes integration into the Grok app for iOS and web platforms, along with new features designed to enhance its utility in various domains.

Grok 3 represents a family of models rather than a single entity. Among these are Grok 3 mini, which prioritizes speed over accuracy, and specialized reasoning models like Grok 3 Reasoning and Grok 3 mini Reasoning. These reasoning variants are tailored to handle complex tasks in mathematics, science, and coding by performing thorough self-checks before delivering answers. Users can access advanced reasoning capabilities through modes such as "Big Brain," which is particularly suited for challenging queries.

The development of Grok 3 relied on substantial computational resources, including a Memphis-based data center equipped with approximately 200,000 GPUs. According to Musk, the model was trained using "10x" more computing power than its predecessor and an expanded dataset that includes legal filings. This enhanced training infrastructure has reportedly resulted in a model that is "an order of magnitude more capable" than Grok 2.

xAI claims that Grok 3 outperforms competitors on benchmarks like AIME (focused on math questions) and GPQA (testing PhD-level knowledge in physics, biology, and chemistry). Additionally, it has shown competitive results in Chatbot Arena, a crowdsourced evaluation platform. The new DeepSearch feature further extends Grok's capabilities by scanning the internet and Musk's social network X to deliver concise abstracts in response to user queries.

Access to Grok 3 is initially limited to subscribers of X’s Premium+ service, with additional features available through a $30-per-month SuperGrok subscription. This premium tier unlocks unlimited image generation and expanded reasoning queries. Future updates will include a voice mode within a week and API availability in the coming weeks.

Musk has positioned Grok as an alternative to mainstream AI systems by emphasizing its "maximally truth-seeking" nature, even when addressing politically sensitive topics. However, earlier versions of Grok faced criticism for perceived political biases, which xAI attributed to its training data. While Musk has pledged to make the system politically neutral, it remains unclear whether this goal has been fully realized in Grok 3.

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This release underscores xAI's ambition to establish itself as a major player in the AI landscape by offering Grok models capable of tackling advanced reasoning tasks while maintaining accessibility for general users.