Grok Code Fast

Code-Optimized

grok-code-fast · Grok · text

Back to Models Back to Docs

Platform

xAI Grok

Visit Official Site

API Pricing

Input / 1M

$0.2/M$0.14/M30% OFF

Output / 1M

$1.5/M$1.05/M30% OFF

Cache Read / 1M

$0.02/M$0.014/M30% OFF

Overview

xAI's ultra-fast coding model Grok Code Fast offers a 256K context window optimized for code generation, completion, and refactoring, with ultra-low latency and ultra-low pricing. It supports FIM completion and Function Calling, making it ideal for IDE integration and CI/CD code review.

Capabilities

256K context; FIM completion; Function Calling; Structured Output; code generation; high-speed responses; real-time X data integration.

Use Cases

Code generation and completion; code transpilation; unit test generation; code review; IDE integration; CI/CD automation.

Limitations

Does not generate images; no cache_write support; average performance on non-coding tasks; max_tokens capped at 8K.

Examples

Claude Code

Anthropic official CLI coding agent. Multi-file edits, tool use, long-context reasoning.

Terminal

export ANTHROPIC_AUTH_TOKEN="YOUR_API_KEY"
export ANTHROPIC_BASE_URL="https://api.robovai.com"
export ANTHROPIC_MODEL="grok-code-fast"
claude

Context Window

256K ctx

Thinking Mode

Not supported

Overview

Grok Code Fast, a fast version optimized specifically for programming tasks, with standout code generation and completion speed.