Grok Code Fast 1

xAI

Specialized model for agentic coding workflows. 314B MoE architecture trained on programming data and real pull requests. 92 tokens/sec throughput. Supports TypeScript, Python, Java, Rust, C++, Go. 70.8% on SWE-Bench-Verified. Available in GitHub Copilot, Cursor, Cline, Roo Code, Kilo Code, Windsurf.

Text Generation API Grok Family
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Parameters
-
params
Context Window
256K
tokens
Max Output
-
tokens
Input Price
$0.2000
per 1M tokens
Output Price
$1.5000
per 1M tokens

Grok Family Timeline 8 versions

Grok 4.20 Beta Latest api
Mar 2026
Grok 4.1 Fast api
Nov 2025
Grok 4.1 api
Nov 2025
Grok Code Fast 1 Current api
Aug 2025
Grok 4 api
Jul 2025
Grok 3 Mini api
Mar 2025
Grok 3 api
Feb 2025
Grok 2 api
-

Capabilities

👁️
Vision
⚡
Function Calling
📋
JSON Mode
🌊
Streaming
💬
System Prompt
🖥️
Code Execution
🔍
Web Search
🔌
MCP Support

Details

Release Date
August 28, 2025
Knowledge Cutoff
-
Source
API
API Key Required
Yes
License
Proprietary
Model ID
grok-code-fast-1
Last updated: December 12, 2025