Elon Musk’s AI company has announced that its most advanced model, Grok 4, is now free for all users worldwide. The update was shared via the company’s official X account. According to xAI, you can now simply switch to Auto mode and allow the system to decide when to route complex queries to Grok 4.
Grok 4 is now free for all users worldwide!
— xAI (@xai) August 10, 2025
Simply use Auto mode, and Grok will route complex queries to Grok 4. Prefer control? Choose "Expert" anytime to always use Grok 4.
For a limited time, we are rolling out generous usage limits so you can explore Grok 4’s full… pic.twitter.com/VW1Pn3ivke
Those who want full control can opt for “Expert” mode to make sure that every request is handled by the flagship model. Apart from that, for a limited time, xAI is rolling out “generous usage limits” to encourage users to explore Grok 4’s capabilities without restrictions.
As we all know, Grok 4 is xAI’s latest and most powerful AI model, developed to rival or even surpass models from OpenAI and Google in intelligence and reasoning. It comes with tool use, real-time search integration, a huge context window, and multimodal capabilities, which means it can process text, images, and audio. It can also execute code, analyse media, and handle complex problem-solving through its advanced “Heavy” mode, which uses teams of AI agents working together.
However, it’s worth keeping in mind that xAI has announced this availability days after OpenAI made GPT-5 the default model for all logged-in ChatGPT users. So by making the Grok 4 available for free, xAI is also trying to grow its adoption and challenge established players head-on.
While Grok 4 has been available via API and premium subscriptions, this free rollout could dramatically expand its user base, especially among those curious about its performance against market leaders. With powerful reasoning, live data access, and multi-format processing, Grok 4 is positioned as a serious contender in the evolving generative AI space.
