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 […]

Cartoon peeled banana with text: Google’s Nano Banana on yellow background.
AIニュース

What Is Google’s Secret Nano Banana AI? Here’s How You Can Test It

Update, July 2026. Nano Banana is out of the guessing phase. Google confirmed the codename and shipped the model as Gemini 2.5 Flash Image on August 26, 2025, so it is no longer an unreleased mystery you have to hunt down. Two generations have landed since, Nano Banana Pro and Nano Banana 2 (officially Gemini 3.1 Flash Image), which became the default image model in the Gemini app in February 2026. The access routes below are historical, and the third-party site nanobanana.ai no longer loads. For current access, read is Nano Banana free and our Nano Banana 2 review. A mysterious AI image generator called Nano Banana has been quietly […]