A cosmic, data-stream background with glowing orange and white particles sweeps diagonally across a dark sky. Centered is a black rounded-square icon bearing Grok’s white circular lightning-slash logo. Below, bold headline text reads “xAI Announces Grok 4.1: Here’s All You Need to Know” in yellow and white.
AIニュース

Elon Musk’s xAI Launches Grok 4.1: Now the Highest-Rated LLM on LMArena

Today, November 17, 2025, xAI has officially rolled out Grok 4.1, the latest iteration of its flagship large language model, across grok.com, the 𝕏 interface, and the iOS and Android apps. The update arrives after a two-week silent production test and aims to deliver more natural conversation, stronger emotional intelligence, tighter safety controls, and dramatically improved real-world reliability. Unlike typical incremental updates, Grok 4.1 represents a noticeable shift in how xAI tunes and deploys its models: it introduces deeper reinforcement learning on style, personality, and alignment, while preserving the factual accuracy and reasoning depth Grok 4 was known for. Below is everything you need to know — benchmarks, new capabilities, safety upgrades, and how […]

A photorealistic image of a vending machine centered in a long school hallway lined with teal lockers. The vending machine is brightly lit and filled with colorful snacks and drinks. Overlaid text reads: “Grok 4 Outperforms GPT-5 In Latest Business Benchmark” with “Business Benchmark” highlighted in yellow.
AIニュース

Grok 4 beats GPT-5 In Running Business According to Latest Vending-Bench

AI benchmarks are usually abstract. They test math puzzles, programming problems, or reading comprehension tasks most people never encounter in real life. But the newest yardstick for long-term AI performance is surprisingly ordinary: running a vending machine. The benchmark, called Vending-Bench, was created by Andon Labs to test whether AI agents can handle one of their hardest unsolved problems — staying coherent and effective over long stretches of time. Each agent is tasked with operating a simulated vending machine business: tracking inventory, placing orders, setting prices, collecting revenue, and paying daily fees. On paper, these are trivial management chores. In practice, they push models to their limits when extended across 20 million […]