Introducing xAI: Grok 4 Reasoning Model

Grok 4 excels in handling text and image inputs with ease.

Input: image · text Output: text Context: 256,000 tokens Release: 2025-07-09

Grok 4 by xAI, released in July 2025, is a cutting-edge reasoning model designed to handle complex tasks with a 256,000-token context window. It seamlessly processes both text and image inputs, delivering structured text outputs. Notably, Grok 4 supports parallel tool calling, enhancing its ability to perform diverse tasks efficiently. While the model's reasoning capabilities are always active, they provide a consistent and intelligent response across various applications. This model is ideal for projects requiring extensive context understanding and multi-modal input processing.

Use Cases

Here are a few ways teams apply xAI: Grok 4 in practice—from fast drafting to multimodal understanding. Adapt these ideas to your workflow.

Analyze large volumes of text data

Generate structured reports from images

Enhance multi-modal research projects

Improve decision-making with detailed insights

Key Features

A quick look at the capabilities that make this model useful in real projects.

256k token context window

Supports text and image inputs

Delivers structured text outputs

Parallel tool calling capability

Active reasoning in all responses

Specs

Overview

Vendor
x-ai

Model ID
x-ai/grok-4

Release
2025-07-09

Modalities & context

Input
image · text

Output
text

Context
256,000 tokens

Parameters & defaults

Supported parameters: include_reasoning, logprobs, max_tokens, reasoning, response_format, seed, structured_outputs, temperature, tool_choice, tools, top_logprobs, top_p

Defaults: temperature 0.2, top_p 0.95

Benchmark tests: xAI: Grok 4

We ran this model against a few representative prompts to show its range. Review the outputs below and be the judge.

Text

Prompt:

Write 150 words on how AI might positively upend work, leisure and creativity

### How AI Might Positively Upend Work, Leisure, and Creativity Artificial Intelligence (AI) stands poised to revolutionize human existence by positively disrupting work, leisure, and creativity, fostering efficiency, personalization, and innovation. In the realm of work, AI could automate mundane tasks like data entry and routine analysis, freeing humans for higher-level problem-solving and strategic roles. This shift might usher in shorter workweeks, reducing burnout and enabling lifelong learning. Tools like AI-driven assistants could enhance productivity, democratizing access to expertise and empowering remote, global collaboration. For leisure, AI promises tailored experiences that enrich downtime. Personalized recommendations for books, music, or travel could deepen enjoyment, while virtual reality integrated with AI might create immersive adventures, from exploring ancient worlds to customized fitness routines. This could promote mental well-being, making relaxation more restorative and inclusive for diverse abilities. Creativity stands to flourish as AI acts as a collaborative muse. Artists and writers could use generative tools to brainstorm ideas, iterate designs, or compose music, breaking through blocks and exploring uncharted territories. By handling technical drudgery, AI amplifies human ingenuity, potentially sparking a renaissance in fields like design and storytelling. Ultimately, AI's positive upheaval could lead to a more balanced, inspired society, where technology amplifies human potential rather than replacing it. (198 words)

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Image

Prompt:

Generate an SVG of a pelican riding a bicycle.

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up.end

/ˌəpˈend/

verb

To “upend” means to completely disrupt, overturn, or drastically change the established order or structure of something. It implies a significant shift or alteration that can potentially have far-reaching consequences. When something is upended, it is turned upside down or transformed in a way that challenges conventional norms or expectations. The term often carries a sense of innovation, transformation, and sometimes even a hint of upheaval, indicating that the changes are not just minor adjustments but rather a fundamental reimagining of the status quo.

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