Grok Code Fast 1 is a chat model trained by xAI, with a knowledge cutoff of November 2024, and a context window of 256,000 tokens.

Knowledge cutoffNov 2024
Context window256,000 tokens
Release dateAug 2025

xAI's fast agentic model. A speedy and economical reasoning model that excels at agentic coding, but is also excellent for non-coding tasks.

On Zo, you can choose between all the leading AI models for chatting, research, coding, and generating media. We believe in giving you the power to explore different models so that you can get the best results for any task.

Grok Code Fast 1 on Zo Computer