Grok 4.1 Fast (Reasoning)

Release Date: 11/19/2025

Benchmarked by Vals Logo
Vals Index

Accuracy (Vals Index)

51.40%

Latency (Vals Index)

183.70s

Cost/Test (Vals Index)

$0.05

Context Window

2M

Max Output Tokens

2M

Input Modality

Hyperparameter settings
Default Provider : xAI

Temperature

0.7

Top P

0.95

Top K

Default

Max Output Tokens

2,000,000

Benchmarks

Accuracy

Rankings

Vals Index

0.0%

21/ 31

CaseLaw (v2)

0.0%

26/ 66

CorpFin

0.0%

7/ 85

MedCode

0.0%

38/ 41

MedScribe

0.0%

17/ 41

MortgageTax

0.0%

54/ 61

ProofBench

0.0%

15/ 17

SAGE

0.0%

29/ 40

TaxEval (v2)

0.0%

23/ 93

AIME

0.0%

14/ 85

GPQA

0.0%

14/ 88

IOI

0.0%

36/ 45

LiveCodeBench

0.0%

27/ 95

LegalBench

0.0%

27/ 107

MedQA

0.0%

33/ 93

MMLU Pro

0.0%

22/ 85

MMMU

0.0%

28/ 58

SWE-bench

0.0%

35/ 55

Academic Benchmarks
Proprietary Benchmarks (contact us to get access)

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