Grok 4 is a new-generation large language model developed by xAI, officially released on July 9, 2025, through a live event on the X platform. The model's name derives from a concept proposed by Robert A. Heinlein in Stranger in a Strange Land, and it skipped the previously expected Grok 3.5 version to accelerate progress amid fierce AI competition.
Main Capabilities
Grok 4 delivers leading performance in natural language, mathematics, and reasoning, achieving leading scores of 35–45% on reasoning benchmarks. Its features include:
- Grok 4 Code version: A variant designed specifically for developers, providing intelligent code completion, debugging assistance, optimization suggestions, and support for real-time IDE integration.
- Multimodal support: Unlike previous versions, Grok 4 supports multiple input types such as text and images, and possibly video as well, keeping pace with competitors such as GPT-4o and Gemini 1.5.
- First-principles reasoning: Enhanced natural language understanding, focused on first-principles reasoning, and handling complex mathematical and scientific queries with advanced logical consistency.
- Multilingual support: Building on previous Grok versions, it supports multilingual capabilities.
- Enterprise optimization: Includes variants optimized for enterprise use cases, such as data extraction, analysis, and domain-specific tasks, with enhanced stability and performance for enterprise applications.
How to Use
Users can access Grok 4 through the following channels:
- Direct access through the X (formerly Twitter) platform, with integrated web browsing and real-time data access.
- Download the iOS and Android mobile apps to get AI assistance anytime, anywhere.
- Use the Grok 4 Code version to enhance coding workflows and IDE integration.
The page mentions that "AI Chat Pro" provides advanced AI chat capabilities, with real-time token tracking, affordable pricing, and powerful features, and that a free trial can be started. However, regarding Grok 4 itself, the materials do not provide clear information about pricing, billing models, or free trial details.
Performance and Parameters
According to the materials, benchmark comparisons between Grok 4 and leading AI models show that it is competitive in reasoning. Its parameter specifications are estimated at 100–175 billion parameters, smaller than GPT-4's approximately 1 trillion parameters, but optimized for reasoning and speed, with a context window of up to 130,000 tokens. In complex problem-solving, GPT-4'soften maintains an advantage in deep multi-step logical reasoning, while Grok 4 performs outstandingly in real-time information integration and rapid iteration, and its reasoning capability is competitive.
Applicable scenarios
Grok 4 is suitable for tasks requiring advanced reasoning, mathematical and scientific problem solving, and natural language understanding. Grok 4 Code is suitable for developers for code completion, debugging, and optimization. Multimodal support enables it to handle inputs such as images, making it suitable for scenarios requiring visual understanding or multiple types of input. The enterprise version can be used for data extraction, analysis, and domain-specific tasks. Through the X platform and mobile app, users can obtain real-time data and web browsing results.
Limitations
Some features in the materials are described as "expected" or "possible," such as video input support and image generation capability, and these have not yet been fully confirmed. Parameter specifications are estimates. Specific information about charges, pricing, and free trials is not currently provided. The comparison with GPT-4 is only a general description and does not provide detailed benchmark data.
