Explore xAI's Grok Code Fast 1 for Efficient Coding

Efficiently tackle coding tasks with Grok Code Fast 1's reasoning abilities.

Input: text Output: text Context: 256,000 tokens Release: 2025-08-26

Grok Code Fast 1, developed by xAI and released on August 26, 2025, is designed to enhance coding efficiency with its agentic capabilities. This text-to-text model provides a substantial context window of 256,000 tokens, making it particularly suitable for complex coding tasks that require detailed reasoning. With input and output both in text format, Grok Code Fast 1 allows developers to include reasoning traces in their responses, providing transparency and control over the coding process. This feature helps in steering the model towards high-quality workflows, ensuring that the coding output meets specific project needs. The model supports a variety of parameters, including options for reasoning and structured outputs, allowing for tailored coding solutions.

Use Cases

Here are a few ways teams apply xAI: Grok Code Fast 1 in practice—from fast drafting to multimodal understanding. Adapt these ideas to your workflow.

Enhance coding efficiency with reasoning traces

Develop high-quality workflows in coding projects

Customize coding outputs with structured parameters

Manage complex coding tasks with large context

Steer coding processes for specific project needs

Key Features

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

256,000 token context window

Text-to-text modality

Agentic coding with reasoning traces

Customizable parameters for tailored outputs

Supports structured outputs

Specs

Overview

Vendor
x-ai

Model ID
x-ai/grok-code-fast-1

Release
2025-08-26

Modalities & context

Input
text

Output
text

Context
256,000 tokens

Parameters & defaults

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

Defaults: temperature 0.2, top_p 0.95

Benchmark tests: xAI: Grok Code Fast 1

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

### Work AI could revolutionize work by automating repetitive tasks, allowing humans to focus on strategic and innovative roles. For instance, AI-driven tools like predictive analytics and robotic process automation could boost productivity in industries such as manufacturing and finance, reducing errors and enabling remote collaboration. This shift might create new jobs in AI oversight and ethics, fostering a more balanced work-life dynamic with shorter hours and greater job satisfaction. ### Leisure In leisure, AI could personalize experiences, tailoring recommendations for movies, music, or travel based on individual preferences. Virtual reality powered by AI might offer immersive simulations, like historical recreations or fantasy worlds, making downtime more engaging. With AI handling chores like scheduling or smart home management, people could enjoy more free time for hobbies, potentially reducing stress and enhancing mental well-being. ### Creativity AI tools could democratize creativity, assisting artists, writers, and musicians by generating ideas, composing music, or refining designs. Platforms like AI image generators empower amateurs to produce professional-quality art without extensive training. This collaboration between human ingenuity and AI could spark unprecedented innovation, blending human emotion with machine precision to explore new artistic frontiers. (Word count: 152)

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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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