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Grok Code Fast 1

Grok Code Fast 1

By xAI
Model family: Grok
Announced on August 28, 2025, Grok Code Fast 1 is a speedy, economical reasoning model purpose-built for agentic coding. It “thinks before responding,” supports function calling and structured outputs, and provides a 256,000-token context window for large codebases. Official pricing is $0.20 per million input tokens, $1.50/M output, and $0.02/M cached input; live search isn’t supported. Typical rate limits are 480 requests/minute and 2M tokens/minute. xAI highlights fast tool-use loops and visible “thinking trace,” and notes strong performance on everyday coding tasks across TypeScript, Python, Java, Rust, C++, and Go. It’s generally available via the xAI API, with limited-time free access through partners like GitHub Copilot, Cursor, and Cline.
New Text Gen 7
Released: July 9, 2025

Overview

Grok Code Fast 1 is xAI’s low-cost, high-speed coding model for “agentic” workflows. It offers a 256K-token context, function calling, structured outputs, and pricing at $0.20/M input, $1.50/M output ($0.02/M cached). Available via the xAI API

About xAI

xAI is an artificial intelligence startup founded by Elon Musk, aiming to understand the universe.

Industry: Artificial Intelligence
Location: Palo Alto, California, US
Website: x.ai
View Company Profile

Other models from this family

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Tools using Grok Code Fast 1

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Last updated: February 3, 2026
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