Grok-4 In-Depth Review | Performance, Usage, and Comparison of xAI's Latest AI Model

xAI Latest Model, Grok-4, In-Depth Review

The evolution of AI (Artificial Intelligence) technology continues to accelerate, with new models appearing on the market daily. Among them, "Grok-4," announced in July 2025 by xAI (Ex-AI), led by Elon Musk, is drawing significant attention for its unique approach and powerful performance.

Grok-4 is an AI model characterized by its ability to access real-time information on the X (formerly Twitter) platform and its humorous and candid response style. Developed under the philosophy of "seeking the truth," it is expected to stand apart from existing LLMs (Large Language Models).

This article provides a thorough explanation of the value this AI model brings by detailing the characteristics of Grok-4, which is integrated into mitsumonoAI, its optimal uses and examples, and a detailed comparison with other major LLMs.

What is Grok-4? | xAI's Latest AI Model

Development Background

Grok-4 is the latest AI model developed by xAI, the AI company founded by Elon Musk in 2023. Since its establishment, xAI has pursued an approach different from existing AI development, aiming to realize an AI that "seeks the truth," and is characterized by its strong integration with X (formerly Twitter).

Grok-4, released in July 2025, boasts significantly improved performance compared to the previous generation model and is capable of handling more complex tasks.

Key Characteristics of Grok-4

• Integration with X (formerly Twitter)
  It can directly access the latest posts and trends on X, allowing for real-time information gathering and analysis.
• High Problem-Solving Capability
  It has a strength in complex math problems, programming, and tasks requiring logical reasoning.
• Unique Conversational Style
  Characterized by human-like dialogue infused with humor and candor, enabling non-stiff communication.
• Long Text Comprehension and Processing
  It can process large amounts of text and images at once, smoothly analyzing complex documents.

Ideal Uses for Grok-4

• Real-Time Market and Public Opinion Analysis
  Gathers and analyzes unfiltered consumer feedback (including posts with images) on trends and specific keywords on X.
• Early Detection of Outbreaks/Risks
  Real-time detection and context analysis of negative posts (including images) regarding your company or competitors.
• Creative Content Production
  Creates unique perspective SNS posts or blog articles, incorporating current events based on trending images and memes on X.
• Advanced Technical Research
  Gathers and summarizes discussions and reactions from experts on X, based on images posted about the latest technical papers or conference proceedings.

Specific Use Cases for Grok-4

Here are prompt examples for effectively utilizing Grok-4.

Example 1: Real-Time X Trend Analysis

"What are the most notable social discussions happening right now? Explain the main talking points and the representative opinions on X with a touch of humor."

Example 2: Multi-Faceted Analysis of Discussions

"Summarize the main arguments from both proponents and opponents on X regarding the recent AI regulation debate."

Example 3: Real-Time New Product Reputation Analysis

"Analyze the real-time reputation of the new product '*****' on X. Quote and summarize the positive opinions, negative opinions, and the most scathing criticism."

Comparison of Grok-4 with Other Major LLMs

We have summarized the main differences between Grok-4 and other LLMs in the comparison table.

Grok-4 vs. Major LLMs Comparison Chart

When Should Grok-4 Be Used?

• When "Freshness" of Information is the Highest Priority
  Since Grok-4 can directly access the immense volume of real-time information on the X platform, it can quickly respond to the latest trends and hot topics—information that other LLMs would take time to incorporate as training data.
• When You Want to Know the "Real Opinion"
  Grok-4's candid perspective is useful when seeking unfiltered, genuine consumer feedback on products or services, or exploring the underlying truths behind a discussion.
• When You Need Unique Ideas
  Grok-4's distinct response style stimulates new insights, serving as a sparring partner for highly entertaining content creation or planning that challenges conventional wisdom.

Precautions When Using Grok-4

Please note the following points when using Grok-4.

1. Bias in Responses
   Grok-4's responses may be influenced by its developers or the information available on X. We recommend referencing multiple sources for important judgments.
2. Information Freshness
   Although it can access real-time information, not all information is always the absolute latest. We recommend verifying critical information with official sources.
3. Ethical Considerations in Content Generation
   Grok-4 is characterized by a humorous and candid response style, but it may generate unexpected expressions in some cases. When using it for business purposes, please always review the generated content before use.

Summary: The New Possibilities Brought by Grok-4 in AI

While other major LLMs evolve in directions such as "versatility," "safety," and "multimodal capabilities," Grok-4 carves out its own unique domain of "real-time relevance," "topicality," "inference capability," and "humor," demonstrating the potential for AI to be not just an information processing tool, but a more human-like and diverse communication partner.