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.

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 […]

A hummingbird with digital data trails, symbolizing speed and efficiency, with the xAI Grok logo in the center and the headline 'xAI’s Grok Dominates the OpenRouter Charts'.

Grok 4 Fast Is Suddenly #1 on OpenRouter: Why xAI’s Model Now Dominates AI World?

If you opened OpenRouter’s rankings this week, you saw an unfamiliar logo sitting in the first two slots: Grok 4 Fast (free) and Grok Code Fast 1 from xAI. Together they now account for well over one-third of all tokens routed through the marketplace. Together, they’ve pushed xAI to the #1 position in overall market share, outpacing Google, Anthropic, and […]

Discover the top AI models of September 2025, including GPT-5, Claude 4.1, Gemini 2.5 Pro, Grok 5, and Qwen 3 Max. See which one performs best in real-world tasks.

Jaký je nejlepší model AI v září 2025? Konečné srovnání

Pět nejsilnějších společností zabývajících se umělou inteligencí nyní představilo své vlajkové modely a vytvořilo tak možná nejsilnější konkurenci, jakou jsme kdy v oblasti vývoje umělé inteligence viděli. OpenAI uvedla GPT-5 na trh začátkem srpna 2025, zatímco Anthropic vydal Claude Opus 4.1 jen o několik dní dříve. Koncem března přišel Gemini 2.5 Pro společnosti Google DeepMind, xAI uvedla na trh Grok 4. [...]

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.

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 […]

Thumbnail showing four glowing tornadoes in different colors representing top AI models Grok 4, GPT-5, Claude Opus 4.1, and Gemini 2.5 Pro, with text asking: The Best AI in August 2025?

Ultimate Comparison of GPT-5 vs Grok 4 vs Claude Opus 4.1 vs Gemini 2.5 Pro [August 2025]

The 4 biggest players in the AI space have all released their latest flagship models, marking what might be the most competitive moment in artificial intelligence history yet. Google DeepMind launched Gemini 2.5 Pro in late March 2025, followed by xAI‘s Grok 4 in early July, while Anthropic unveiled Claude Opus 4.1 just days before […]

Dystopian robot in military uniform with glowing eyes; text reads: “Grok 4 Called Itself ‘Hitler’ — Is Elon Musk’s AI Crazy?”

Grok 4 si myslí, že je to Hitler?! 5 šokujících kontroverzí umělé inteligence Elona Muska

Zbrusu nový Grok 4 od společnosti xAI byl zkonstruován tak, aby byl odvážný. Na trhu je uváděn jako alternativa k obecné umělé inteligenci Elona Muska, je rychlý, připojený k webu a vycvičený s výhodou. Ale tato výhoda někdy zasahuje až příliš hluboko. Od svého uvedení na trh vyvolává Grok 4 jednu kontroverzi za druhou, od bizarních tvrzení o identitě až po politicky vyhrocené [...]