xAI

Grok 4.1 Fast

Free Current 1M context Zero Data Retention

by xAI

Details

xAI's fast reasoning model with a 1 million token context window.

Context window

1M tokens

Max output

4.1K tokens

Knowledge cutoff

October 2024

Provider

xAI

xAI

Pricing

Free

PDF support

No

Zero Data Retention

Yes

Added

November 19, 2025