xAI发布轻量级编程模型Grok Code Fast 1
阅读原文· x.aixAI发布专为Agentic Coding优化的极速编程模型，已集成Cursor、Copilot等主流工具，价格极具竞争力
xAI发布轻量级编程模型Grok Code Fast 1，采用全新架构，基于真实PR数据训练，精通grep、终端和文件编辑等工具。推理速度达190 tokens/秒，定价输入$0.20/百万tokens、输出$1.50/百万tokens，SWE-Bench-Verified得分70.8%。目前已在GitHub Copilot、Cursor、Cline等平台限时免费开放。
Grok Code Fast 1 | xAI
Aug 28, 2025
Grok Code Fast 1
We're thrilled to introduce grok-code-fast-1, a speedy and economical reasoning model that excels at agentic coding.
A speedy daily driver Blazing fast A versatile programmer An economical choice Grok Code for everyone What to expect in the next few weeks
A speedy daily driver
While today's models are undeniably powerful, they often don't feel purpose-built for agentic coding workflows, where loops of reasoning and tool calls can feel frustratingly slow. As heavy users of agentic coding tools, our engineers saw room for a more nimble, responsive solution optimized for our day-to-day tasks.
We built grok-code-fast-1 from scratch, starting with a brand-new model architecture. To lay a robust foundation, we carefully assembled a pre-training corpus rich with programming-related content. For post-training, we curated high-quality datasets that reflect real-world pull requests and coding tasks.
Throughout the training process, we collaborated closely with our launch partners to refine and sharpen the model’s behavior inside their agentic platforms. grok-code-fast-1 has mastered the use of common tools like grep, terminal, and file editing, and thus should feel right at home in your favorite IDE.
We've teamed up with select launch partners to offer grok-code-fast-1 for free for a limited time, including GitHub Copilot, Cursor, Cline, Roo Code, Kilo Code, opencode, and Windsurf.
Try free on Cursor
Try free on GitHub Copilot
Try free on Cline
Blazing fast
Our inference and supercomputing teams developed several innovative techniques to dramatically accelerate our serving speed, creating a uniquely responsive experience where the model will have already called dozens of tools before you even finish reading the first paragraph of the thinking trace. We've also invested in prompt caching optimizations, regularly achieving cache hit rates above 90% when used with our launch partners.
A versatile programmer
grok-code-fast-1 is exceptionally versatile across the full software development stack and is particularly adept at TypeScript, Python, Java, Rust, C++, and Go. It can complete common programming tasks with minimal oversight, ranging from building zero-to-one projects and providing insightful answers to codebase questions to performing surgical bug fixes.
Example 1 of 2 Battle Simulator
Danny Limanseta @dannylimanseta
It's so quick that I actually had to change up how I work in Cursor.