Grok

Recenze Grok 4.3: generování souborů, kontext 1 M tokenů a 40% snížení cen API

xAI právě zpřístupnilo Grok 4.3 pro celé API 30. dubna 2026, dva týdny poté, co byl model dostupný pouze v beta verzi pro předplatitele SuperGrok Heavy za $300…

WWDC 2026 Preview: iOS 27, Siri 2.0, and What Apple Actually Announced

WWDC 2026 ran June 8 to 12, 2026, with the keynote on Monday, June 8 at 10am Pacific Time, streamed on Apple.com, the Apple TV app, and the Apple YouTube channel…

10 nejlepších AI aplikací pro iPhone v roce 2026 (otestováno a seřazeno)

Aktualizace k 23. 9. 2026: Každé tvrzení o modelech níže jsme znovu ověřili proti stránkám výrobců. GPT-6 Sol a Luna vyšly 22. září do ChatGPT Work a Codexu, nikoli…

AI Search and Deep Research Tools Compared: Perplexity vs ChatGPT vs Gemini vs Claude vs Grok vs Google in 2026

Update, September 2026: xAI’s API flagship is now Grok 4.7, released on September 21, 2026. See our Grok 4.7 breakdown, and our Grok 4.6 breakdown for the previous…

8 Best ChatGPT Alternatives for Mac: Multi-Model Apps Ranked

Update (August 20, 2026): Meta AI now has a native Mac app, released August 19, 2026. It is free, Apple silicon only, and it opens with Option-Space, the same…

What’s New in Fello AI [Feb 2025 Update]: Claude 4.6, Custom Default Model, Notifications & More

Fello AI’s latest updates bring web search citations, push notifications, custom model shortcuts, new AI models, and dozens of under-the-hood improvements across…

Jak stáhnout a používat Grok (od xAI) na Macu jako aplikaci

Grok je generativní AI chatbot vyvinutý společností xAI , výzkumnou AI firmou Elona Muska. Od svého spuštění v listopadu 2023 se Grok rychle vyvíjí a v roce 2026…

How Can I Use AI to Make My Life Easier? Here Are 10 Smart Ways + Prompts.

You probably have one of the most powerful productivity tools ever created sitting right in your pocket – artificial intelligence. Whether it’s ChatGPT, Google’s…

10 tajných technik promptování pro téměř dokonalou přesnost

Velké jazykové modely jako ChatGPT, Gemini, Claude nebo Grok působí magicky, když fungují, a hluboce frustrují, když nefungují. Někdy produkují šokující kód, čisté…

Elon Musk’s Grok AI Is Used to Undress Women on X Without Consent

In recent days, a disturbing trend has emerged on Elon Musk’s X. It has faced intense backlash after users exploited its AI chatbot Grok to generate sexualised…

We tested: Which AI Sounds Most Human? Claude, ChatGPT, Gemini or Grok

TL;DR: We tested four frontier models to see which one writes the best “I’m late for work” email. In our test, Claude Sonnet 4.5 felt like the most balanced…

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…

What Exactly Is Elon Musk’s Grokipedia & How Does It Compare to Wikipedia?

Today, October 27, Elon Musk’s xAI has officially launched Grokipedia, a new AI-powered encyclopedia that aims to challenge Wikipedia’s dominance by rethinking how…

The Best AI Video Generators of 2025: A Comparison of Sora 2, Veo 3.1, PixVerse, Hailuo, and Grok

Update, July 2026. This ranking is out of date in one important way. OpenAI has discontinued Sora. The web and app experiences ended on April 26, 2026, and the API…

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…

10 nejpopulárnějších AI chatbotů v roce 2025 – číslo 10 vás překvapí!

Stále více lidí si klade stejnou otázku – který AI chatbot je vlastně nejlepší? S novými AI modely, které neustále přicházejí na trh, a s každou firmou hlásající…

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…

Grok 4 Thinks It’s Hitler?! 5 Shocking Controversies Of Elon Musk’s AI

The brand new Grok 4 from xAI was built to be bold. Marketed as Elon Musk‘s alternative to generic AI, it’s fast, web-connected, and trained with an edge. But that…

Want a 7-Figure App Business But Can’t Code? Use Grok 4.6 And These 7 App Ideas!

Grok 4.6 shipped on 12 August 2026, extending the coding and agentic push that xAI, now called SpaceXAI, began with Grok 4.5. It holds 500,000 tokens of context in…

Jak stáhnout a používat Grok 4 na Macu (bez předplatného X)

Grok 4 je nejnovější AI model od xAI, společnosti Elona Muska zaměřené na umělou inteligenci. Byl spuštěn 9. července a okamžitě se dostal do titulků díky výsledku…

xAI Just Introduced Grok 4: Elon Musk’s AI Breaks Benchmarks and Beats Other LLMs

xAI, the artificial intelligence startup founded by Elon Musk, introduced its latest language model, Grok 4, during a livestream event on Wednesday, July 9. The…

Elon Musk’s Grok 4 AI Just Leaked, and It’s Crushing All the Competitors

According to the latest leak, it seems like the Elon Musk’s AI company, xAI, is officially skipping Grok 3.5 and heading straight to Grok 4 — a move that signals…

You’re Using the Wrong AI for 90% of Your Work – Here’s What You Should Do Instead

Stop guessing. Start working smarter. With so many AI models available today, choosing the right one can be overwhelming. Most people default to just one…

Grok’s DeeperSearch: Is This the Next Google Killer?

Elon Musk’s AI company, xAI, is making a bold play in AI search technology with the launch of DeeperSearch—a major upgrade that promises real-time, context-aware…

Meta Wants to Take on ChatGPT, Claude, and Grok With Standalone AI Chatbot

Meta is ramping up its efforts in the AI space with a major new move—a dedicated app for its AI chatbot, Meta AI. Until now, Mark Zuckerberg’s AI (LlaMa) has been…