Compare AI Models

Comparing the specifications and intelligence benchmarks for Grok 4.1 Fast (Reasoning), Grok 4 Fast (Reasoning).

Model	Intelligence	MMLU Pro	Context	GPQA	TTFT (s)	Speed (T/s)	Input Price (1M)	Output Price (1M)
Grok 4.1 Fast (Reasoning) xAI	38.6	85.4%	-	85.3%	10.65	134	$0.20	$0.50
Grok 4 Fast (Reasoning) xAI	35.1	85.0%	-	84.7%	3.09	179	$0.20	$0.50