seniorspectrumnewspaper – xAI, led by Elon Musk, launched its latest AI model, Grok 4, during a live stream on X. Musk and the xAI development team introduced Grok 4 as a powerful large language model (LLM) with significantly improved reasoning abilities. They emphasized the model’s superior academic knowledge, claiming it surpasses PhD-level expertise across all subjects.
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The announcement included performance benchmarks like Humanity’s Last Exam, a challenging 2,500-question test designed to evaluate AI capabilities across many fields. Grok 4 scored 25.4 percent, outperforming competing models such as Google’s Gemini 2.5 Pro (21.6 percent) and OpenAI’s o3-high (21 percent). This achievement demonstrates Grok 4’s advanced reasoning and broad subject mastery, setting a new standard for large language models.
xAI also revealed Grok Heavy, a multi-agent system that coordinates specialized AI agents to solve problems collaboratively. This approach aims to generate higher-quality outputs by comparing various solutions. Musk highlighted Grok Heavy’s strong performance with tool use, scoring 44.4 percent on Humanity’s Last Exam, well above OpenAI’s 26 percent and Gemini’s 26.9 percent with tools. Though details on Grok Heavy remain limited, it resembles Sakana AI’s recently released multi-agent open-source algorithm. The system’s collaborative design marks an innovative step in AI development, potentially transforming how complex problems are approached by leveraging diverse AI perspectives within a single framework.
SuperGrok Heavy Subscription Offers Premium Access at $300 Per Month
Alongside Grok 4 and Grok Heavy, xAI introduced a premium AI subscription plan called SuperGrok Heavy. Priced at $300 (approximately ₹25,700) per month, it stands as the most expensive consumer AI subscription to date. SuperGrok Heavy targets power users who require higher rate limits and early access to new features. Subscribers will benefit from advanced capabilities like Grok Heavy’s multi-agent system, enhancing their AI interactions. Elon Musk and the xAI team framed the subscription as a premium service designed for users needing cutting-edge AI performance. This move reflects growing demand for specialized AI tools that go beyond basic access.
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The launch of Grok 4, Grok Heavy, and SuperGrok Heavy positions xAI as a competitive force in the AI market. Their focus on academic knowledge and collaborative problem-solving sets them apart from other models. As AI adoption expands, xAI’s innovations could influence future developments and consumer expectations. Grok 4’s performance against top-tier rivals signals a new era in AI capabilities. The expensive SuperGrok Heavy plan also raises questions about accessibility and the future pricing models for AI services. Nonetheless, xAI’s offering clearly targets professional and enthusiast users seeking premium AI solutions.
