xAI debuts Grok 4, which they describe as the ‘Smartest AI in the world,” on July 9, 2025. Elon Musk unveiled the latest edition of xAI’s flagship AI model Wednesday in a livestream video. The latest update comes a day after the bot posted antisemitic content on the social media network, which led to numerous discussions and controversies.
Elon Musk stated on the Grok 4 launch that it was truly remarkable to see the advancement of artificial intelligence and how quickly it was evolving. He noted that AI was advancing vastly faster than any human, and that Grok 4 was smarter than almost all graduate students in all disciplines, simultaneously. He remarked that that was something.
Grok 4, the “smartest AI in the world,” builds upon its predecessor, Grok 3, by integrating advanced tools like code execution, document parsing from the start, web search, etc. xAI has become one of the leading contestants in delivering faster and reliable AI features and services along with OpenAI and Anthropic, and Grok 4 will add another golden feather to its crown.
The company has made an official statement regarding Grok’s incident regarding antisemitic comments. xAI stated that they were aware of recent posts made by Grok and were actively working to remove the inappropriate posts. They mentioned that since being made aware of the content, xAI had taken action to ban hate speech before Grok posted on X.
xAI also noted that they were training only truth-seeking models and added that, thanks to the millions of users on X, they were able to quickly identify and update the model where training could be improved.
This article is not about the recent controversies; it is all about Grok 4 and all the features you need to know about. Let us get to that without waiting further.
What is Grok 4? A Strong Opponent for OpenAI GPT-5?
xAI’s answer to OpenAI’s ChatGPT and Google’s Gemini has been officially released last week, and the features it has are nothing but phenomenal. The enhanced capabilities of Grok 4 will redefine artificial intelligence technology.
What is Grok 4?
Grok 4 is the latest version of the xAI, which is owned by the multibillionaire Elon Musk. The recent model was unveiled on July 9, 2025. The company claims the latest model is the most intelligent model in the world and by far the most powerful version of xAI. xAI released two variants last Wednesday: Grok 4 Heavy and Grok 4 Code.
In the xAI blog, it was stated that for Grok 4, they utilised Colossus, their 200,000 GPU cluster, to run reinforcement learning training aimed at refining Grok’s reasoning abilities at a pretraining scale. They explained that this was made possible through innovations throughout the stack, including new infrastructure and algorithmic work that increased the compute efficiency of their training by six times, as well as a significant data collection effort, which expanded their verifiable training data from primarily math and coding data to many more domains. They noted that the resulting training run saw smooth performance gains while training on over an order of magnitude more compute than had been used previously.
Features of Grok 4
Grok 4 has two specialised variants: Grok 4 Heavy and Grok 4 Code. Grok 4 Heavy employs a multi-agent system where different AI agents collectively work in parallel to solve certain problems, enhance responses, share insights, etc. Grok 4 Code is a specialised variant that is developed to integrate with various development tools.
It offers features like optimisation suggestions, debugging assistance, code generation, etc. As per the latest information, users can access Grok 4 for $30 a month, and Grok 4 Heavy will cost around $300 a month. Here is a breakdown of the advanced features of Grok 4.
1. Multimodal Capabilities
Grok 4 features capabilities to process text and vision. This feature will redefine the way we approach AI chatbots. The features are currently in their early stages, and the company is planning to implement improved visual understanding and image generation in future upgrades.
2. Advanced Reasoning
Grok 4 primarily focuses on reasoning. To facilitate these types of complicated reasoning problems, the model employs a hybrid architecture and parallel processing. These two features will equip the model to perform well in various scenarios that demand complex problem-solving abilities.
3. Real-time Data Integration
Grok 4 can integrate real-time data from X and the web. This will enable an up-to-date data-driven response from the chatbot. Grok 4 will be able to deliver accurate and real-time information based on the current events and incidents. By analysing the real-time data, it also gives information regarding the latest trends in society.
4. Advanced Voice Mode
Grok 4 features an advanced voice mode that incorporates enhanced realism, responsiveness, and intelligence. According to the official document of xAI, they have introduced a serene, brand-new voice and redesigned the conversations to make them more natural and ideal.
5. Vision During Voice Chat
Vision during voice chat is another notable feature present in the model. The xAI blog stated that Grok could see what the user sees, and that by pointing the camera and speaking immediately, Grok would pull live insights, analyse the scene, and respond in real-time from within the voice chat experience. They expressed pride in presenting this model, which was trained in-house using their state-of-the-art reinforcement learning framework and speech compression techniques.
The xAI blog that introduces their latest model explains the features of Grok 4, concluding that they have already planned to expand the scope from verifiable rewards in controlled domains to tackling complex real-world problems, where models could learn and adapt in dynamic environments.
They mentioned that multimodal capabilities would see ongoing improvements, integrating vision, audio, and beyond for more intuitive interactions. Overall, their focus remained on making models smarter, faster, and more efficient, as they drove toward systems that truly understood and assisted humanity in profound ways.
Pricing and Availability of Grok 4
Grok 4 is available through various channels. You can access them and their service based on your user type and subscription level. Grok 4 and Grok 4 Heavy are available at xAI.API, developers, and enterprises can access them by navigating there. The pricing structure for developers and enterprises is given below.
- $3 per 1 million input tokens
- $15 per 1 million output tokens
- $0.75 per 1 million cached input tokens
The given price for Grok 4 is likely to double when you cross 128,000 tokens in a single context window.
The details of consumer access for Grok 4 are given below.
Individual users or consumers can access Grok 4 through the Grok chatbot on X and the Grok app. The Grok application is available on both Android and iOS. Here are the price details,
- Grok Premium Plus: $16/month
- SuperGrok: $300/month
- Grok Heavy: $300/ month (you will get access to Grok 4 and Grok 4 Heavy)
Recommended Reading: OpenAI Postpones Release of Its Open-Weight Model Again
The Bottom Line
These are some of the advanced features included in the latest model of Grok AI. The blog explaining the features of the latest model confirms that the company will continue scaling reinforcement learning to unprecedented levels. xAI pushing Grok 4 to its ultimate limit and boundaries of artificial intelligence technology is not a distant possibility.
Elon Musk concluded his words by stating that it was truly remarkable to see the advancement of artificial intelligence and how quickly it was evolving, adding that AI was advancing vastly faster than any human. He claimed that Grok 4 was smarter than almost all graduate students in all disciplines, simultaneously, and remarked that this was something.
