Grok Code Fast 1 by GitHub Copilot — Specs, Pricing & Capabilities | whichllm

Model ID grok-code-fast-1

Provider GitHub Copilot

Family grok

Status -

Knowledge Cutoff 2025-08

Release Date 2025-08-27

Input Modalities text

Output Modalities text

Context Window 128000

Input Limit 128000

Output Limit 64000

Tool Calling Yes

Reasoning Yes

Structured Output -

Temperature Control Yes

Open Weights No

Input Cost / 1M tokens -

Output Cost / 1M tokens -

Reasoning Cost / 1M tokens -

Cache Read Cost / 1M tokens -

Cache Write Cost / 1M tokens -