Grok 4 Fast

Faster Grok 4 with identical quality (2m context). Low latency for time-sensitive tasks and huge context window.

Model Specifications

Context window 2,000,000 tokens
Max output 30,000 tokens
Knowledge cutoff June 2025
Multipart messages No
Vision capabilities No

Default Parameters

Temperature 0.3
Top P 1.0
Frequency penalty 0.0
Presence penalty 0.0
Top K 50

More models from xAI