xAI

Grok 3 Mini Fast

xAI•Documentation

grok-3-mini-fast

xAI's fastest compact model. Same capabilities as Grok 3 Mini with optimised infrastructure for minimal latency. Supports reasoning_effort control.

Use this model with Aisle

Have natural conversations with the model in a familiar interface

Automate tasks, share with your team, and deploy to chat

Test prompt variants, model settings, and compare models side by side

Chain prompts together for complex automation and outcomes

Context Window

131K

tokens

Max Output

131,072

tokens

Temperature

0 – 2

default: 1

Web Search

Available

Structured Output

Available

Supported File Formats

Documents

pdftextdocxlsrtfdocxxlsxpptxpptodtodpods

Grok models require documents to be uploaded to xAI's Files API before use in chat. Files are stored for up to 30 days and are not used for model training under xAI's Enterprise API terms. xAI Privacy Policy