Frontier
xAI
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
Supported Parameters
Temperature
SupportedControls randomness: Lower values make output more deterministic, higher values more creative.
Range: 0.0 - 1.0
Default: 0.3
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