Grok 4.1 Fast (Reasoning) is the reasoning-enabled configuration of Grok 4.1 Fast, with extended thinking always active. The model produces explicit chain-of-thought traces before its final answer, delivering higher accuracy on complex analytical tasks at the cost of additional latency. It shares the same 2M-token context window and tool-calling capabilities as the standard variant, making it suited for tasks where correctness on difficult problems justifies the extra thinking time.
GrokGrok 4.1 Fast (Reasoning) is the reasoning-enabled configuration of Grok 4.1 Fast, with extended thinking always active. The model produces explicit chain-of-thought traces before its final answer, delivering higher accuracy on complex analytical tasks at the cost of additional latency. It shares the same 2M-token context window and tool-calling capabilities as the standard variant, making it suited for tasks where correctness on difficult problems justifies the extra thinking time.
Grok