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Grok 4.1 Fast

ReasoningClosed weightsModels.dev
Intelligence
20.4
Rank 242 of 744 measured models
Context window
2M
Rank 8 of 1199 measured models

Grok 4.1 Fast (Reasoning) scores 20.4 on the Artificial Analysis Intelligence Index, ranking 242nd of 744 measured models. The closest models on this index are GPT-5.1 Codex mini (High) (20.4), Qwen3.5 Omni Plus (20.4), and o3 (20.2).

Artificial Analysis Indices
Reasoning
Intelligence20.4
Rank 242 of 744 measured models
Math89.3
Rank 30 of 270 measured models
Standard Benchmarks
MMLU Pro85.4%
Rank 27 of 349 measured models
GPQA Diamond85.3%
Rank 136 of 619 measured models
HLE19.3%
Rank 226 of 664 measured models
LiveCodeBench82.2%
Rank 22 of 343 measured models
AIME 202589.3%
Rank 30 of 270 measured models
IFBench52.7%
Rank 166 of 450 measured models
AA-LCR74.0%
Rank 170 of 575 measured models
TerminalBench Hard24.2%
Rank 151 of 432 measured models
Models at a similar level
The closest models on the Intelligence Index, one configuration per family.

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