Noometry

Model comparison

Grok 4.1 Fast vs Mistral 7B

Grok 4.1 Fast is the stronger model overall, scoring 41.4 to 23.0 on the Noometry Index.

Last verified . 17 shared benchmarks.

Grok 4.1 Fast xAI

41.4

Rank #136 Confirmed

Mistral 7B Mistral AI

23.0

Rank #351 Confirmed

Summary

  • They share 17 benchmarks with published results for both. Grok 4.1 Fast scores higher in 8 categories and Mistral 7B in 0 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where Grok 4.1 Fast leads 43.4 to 13.1.
  • The biggest single-benchmark swing is DTBench: 87.7% for Grok 4.1 Fast and 42.5% for Mistral 7B.
  • Mistral 7B is cheaper at $0.25 / $0.25 per million input/output tokens, against $0.20 / $0.50 for Grok 4.1 Fast.
  • Grok 4.1 Fast accepts more context: 128K tokens versus 8K.
  • Mistral 7B has downloadable open weights; the other is API-only.

Side by side

Grok 4.1 FastMistral 7B
ProviderxAIMistral AI
Noometry Index41.423.0
Released2025-06-272023-09-27
WeightsProprietaryOpen
Context window128K8K
Max output30K8K
Input $ / M tokens$0.20$0.25
Output $ / M tokens$0.50$0.25
Results tracked3237

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Category by category

Coding Grok 4.1 Fast leads

Grok 4.1 Fast: 34.1 (#245), Mistral 7B: 26.4 (#326)

BenchmarkGrok 4.1 FastMistral 7B
LMArena Coding14111082
LMArena WebDev1242—
BigCodeBench Instruct—19.5%
BigCodeBench Complete—27.3%
ALE-Bench394.93—
HumanEval+—36%
MBPP+—42.1%

Agentic & Tool Use Not comparable

Grok 4.1 Fast: 36.3 (#39), Mistral 7B: —

BenchmarkGrok 4.1 FastMistral 7B
Berkeley Function Calling Leaderboard69.6%—
τ²-bench Banking13.1%—
LMArena Search1171—
Vending-Bench 21,107—

Reasoning Grok 4.1 Fast leads

Grok 4.1 Fast: 43.4 (#49), Mistral 7B: 13.1 (#336)

BenchmarkGrok 4.1 FastMistral 7B
LMArena Hard Prompts14071067
DTBench87.7%42.5%
SimpleBench56%—
NYT Connections (extended)87.4%—
Chess Puzzles—0%
Adversarial NLI—47.1%
BIG-Bench Hard—56.1%
Epoch Capabilities Index—112.21
ForecastBench61—
HellaSwag—81%
PIQA—83%
WinoGrande—75.3%

Math Grok 4.1 Fast leads

Grok 4.1 Fast: 31.9 (#221), Mistral 7B: 8.1 (#325)

BenchmarkGrok 4.1 FastMistral 7B
LMArena Math14081085
MathArena Final-Answer Competitions60.9%—
OTIS Mock AIME 2024-2025—0.3%
ProofBench4%—
MATH Level 5—3.7%
GSM8K—54.4%

Knowledge Grok 4.1 Fast leads

Grok 4.1 Fast: 33.1 (#207), Mistral 7B: 7.4 (#311)

BenchmarkGrok 4.1 FastMistral 7B
LMArena Expert13991036
GPQA Diamond—15.2%
Vectara Hallucination Rate17.8%—
ARC (AI2) Challenge—78.6%
BoolQ—87.4%
MMLU—62.5%
OpenBookQA—79.8%
TriviaQA—75.2%

Multimodal Not comparable

Grok 4.1 Fast: 37.0 (#76), Mistral 7B: —

BenchmarkGrok 4.1 FastMistral 7B
LMArena Vision1201—

Multilingual Grok 4.1 Fast leads

Grok 4.1 Fast: 51.0 (#114), Mistral 7B: 25.8 (#283)

BenchmarkGrok 4.1 FastMistral 7B
LMArena Non-English13911012
LMArena Chinese14411009
LMArena French14151037
LMArena German1404987
LMArena Japanese1349878
LMArena Russian13871018
LMArena Spanish14131026
LMArena Korean1361—

Instruction Following Grok 4.1 Fast leads

Grok 4.1 Fast: 72.7 (#133), Mistral 7B: 54.2 (#280)

BenchmarkGrok 4.1 FastMistral 7B
LMArena Instruction Following13761060

Long Context Grok 4.1 Fast leads

Grok 4.1 Fast: 42.4 (#126), Mistral 7B: 32.2 (#271)

BenchmarkGrok 4.1 FastMistral 7B
LMArena Longer Query13901060

Writing & Preference Grok 4.1 Fast leads

Grok 4.1 Fast: 57.2 (#131), Mistral 7B: 30.7 (#286)

BenchmarkGrok 4.1 FastMistral 7B
LMArena Text14081090
LMArena Creative Writing13941068
LMArena Multi-Turn13891062
EQ-Bench Creative Writing1327—

Frequently asked questions

Is Grok 4.1 Fast better than Mistral 7B?

Grok 4.1 Fast is the stronger model overall, scoring 41.4 to 23.0 on the Noometry Index.

Which is cheaper, Grok 4.1 Fast or Mistral 7B?

Mistral 7B is cheaper. It lists at $0.25 per million input tokens and $0.25 per million output tokens; Grok 4.1 Fast lists at $0.20 and $0.50.

Is Grok 4.1 Fast or Mistral 7B better for coding?

Grok 4.1 Fast scores higher on coding benchmarks: 34.1 versus 26.4 in the Noometry coding category.

Which has the bigger context window?

Grok 4.1 Fast does, with 128K tokens against 8K.

How many benchmarks do Grok 4.1 Fast and Mistral 7B share?

17 benchmarks have published results for both models. Grok 4.1 Fast has 32 scored results on Noometry and Mistral 7B has 37.

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