Elon Musk-owned xAI is testing Grok 4.20, a new model update to Grok 4, which already competes with GPT-5 in some benchmarks, such as ARC-AGI 2. GPT-5 is one of the best models for coding, and it ...

A Mathematician with early access to XAI Grok 4.20, found a new Bellman function for one of the problems he had been working on with my student N. Alpay. Not an Erdős problem, but original research.

There is a common problem for all AI companies for overfitting to benchmarks. XAI Grok 4 has some problems with prompt adherence. XAI could have had overfitting resulted from the reinforcement ...

Forbes contributors publish independent expert analyses and insights. Dr. Gerui Wang writes about AI, society, media, and culture. Grok 4’s focus on enhancing reasoning, including domain-specific ...

Is Grok 4.2 the most intelligent coding model we’ve seen yet? With its release in January 2026, this AI powerhouse has already sparked conversations across the tech world. In this comparison, World of ...

A grade of 45 might not seem gold star-worthy by old school human exam standards, but that's how xAI's Grok 3 chose to illustrate this column when I interviewed the chatbot on "leaked" rumors that its ...

What if the future of AI could not only dream up stunning web designs but also code them into reality with unmatched precision? In this overview, Universe of AI explores how Grok 4.2, codenamed ...

近日，科技界迎来了一则重大消息：马斯克旗下的xAI公司宣布，其最新的AI模型Grok 4即日起向全球所有用户免费开放。这一举措正值GPT-5发布后不久，无疑为AI领域的竞争再添一把火。 据xAI公司介绍，Grok 4在自动模式下会自动处理复杂查询，而切换到专家模式后 ...

On Wednesday night, Elon Musk unveiled xAI’s latest flagship models Grok 4 and Grok 4 Heavy via livestream, just one day after the company’s Grok chatbot began generating outputs that featured ...