Elon Musk's company, xAI, has made its most advanced language model, Grok 4, available to free users on the web platform grok.com and its mobile app. This move comes a month after the model's initial launch for subscribers and just a few days after OpenAI released GPT-5, suggesting a strategic decision in a highly competitive landscape.

Grok 4 is distinguished by its enhanced speed, performance, and higher accuracy. It was trained on the powerful Colossus compute cluster, which includes over 200,000 GPUs. In logical reasoning tests, the model achieved results twice as high as its competitors. Its capabilities for autonomous decision-making are particularly impressive: in a virtual business simulation, Grok 4 significantly outperformed both other AI models and the average scores of human participants.

For free users, access to the model is limited to five requests every 12 hours. However, they also gained access to the Grok Imagine image and video generator, which was previously a paid feature. A separate, even more powerful version, Grok 4 Heavy, remains available exclusively by subscription.

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