xAI Makes Grok 4 Free for All Users

Imagine having access to advanced artificial intelligence (AI) that can answer complex questions, generate images, or even help with creative tasks—all for free. That is exactly what xAI, founded by Elon Musk, is now offering. Grok 4, previously available only for a fee, is now freely accessible to users worldwide. This decision comes at a time when competition in AI is intensifying, and xAI is trying to attract as many people as possible in order to collect real-world usage data. According to official announcements, this free access comes with "generous" temporary limits allowing up to 5 requests every 12 hours. After exceeding this limit, users must switch to the paid version to continue.

This move is not just about generosity. xAI is pursuing a two-pronged strategy: on the one hand, it is flooding the market with free access to capture as many real-world signals as possible, while on the other, it is building an entirely different foundation model that will transform these signals into advanced capabilities. Elon Musk himself confirmed that they plan to integrate advertising to offset the high cost of the GPUs (graphics processing units) that power Grok. This means that although Grok 4 is free now, the future may bring changes depending on demand.

Usage Modes: Auto and Expert for Everyone

One of the key features that makes Grok 4 appealing is its operating modes. In Auto mode, the system decides whether to use the full power of Grok 4 or a lighter model based on the complexity of the request. This is ideal for regular users who want quick answers without unnecessary waiting. By contrast, Expert mode allows users to manually initiate more demanding computations, which is excellent for more complex tasks requiring greater accuracy.

For those who want even more, Grok 4 Heavy remains exclusive to SuperGrok Heavy subscribers, at a cost of $300 per month. This version offers the most powerful performance, but the standard Grok 4 is more than sufficient for regular users. Interestingly, image and video generation in Grok Imagine remains limited to the US, which xAI attributes to regulatory reasons. According to available search data, this free access is described as being available for a limited time, and xAI is monitoring user behavior so that it can adjust the limits if necessary.

Future Versions: Multimodal Changes and V7

xAI is not stopping with the current version. The next iteration of Grok, which has already completed pre-training, will be the company’s first natively multimodal system. Instead of relying on transcripts or extracted frames, it will directly process raw audio and video streams. This means the model will capture nuances such as tone of voice, mood, or context in real time, thanks to spatiotemporal tokenization (dividing data into spatiotemporal tokens) and end-to-end multimodal representations.

Elon Musk mentioned that V7 will take game generation to a new level. The model will be able to create a game "in one shot," then play it, observe feedback on the screen, modify the code, and feed these cycles back into training. This approach, called model-in-the-loop, increases the likelihood of success, but it also increases computing demands, latency, and security risks. This information comes directly from xAI’s announcements and confirms that Grok is evolving toward even greater autonomy.

Why Now?

In the context of OpenAI’s recent launch of GPT-5, xAI appears to be responding to growing competition. Free access to Grok 4 allows xAI to collect vast amounts of global usage data, which will help improve the model. Users with an X account (formerly Twitter) can use Grok 4 through the mobile app or website, increasing its accessibility. According to the sources found, the free version also includes new image-generation modes, but some advanced features remain behind a paywall.

This development shows how xAI is balancing openness and sustainability. With plans for advertising and paid subscriptions, the company is trying to cover its costs while offering value to the general public. If you are curious about AI, now is the ideal time to try Grok 4—with limits, but fully functional and ready for your questions.