Noometry

Model comparison

Grok 4 Fast vs MiniMax-M2.7

Grok 4 Fast is the stronger model overall, scoring 39.4 to 37.7 on the Noometry Index.

Last verified . 21 shared benchmarks.

Grok 4 Fast xAI

39.4

Rank #167 Confirmed

MiniMax-M2.7 MiniMax

37.7

Rank #196 Confirmed

Summary

  • They share 21 benchmarks with published results for both. Grok 4 Fast scores higher in 6 categories and MiniMax-M2.7 in 3 categories; 7 gaps are clear of the uncertainty.
  • The widest gap is in long context, where Grok 4 Fast leads 63.2 to 43.3.
  • The biggest single-benchmark swing is Vectara Hallucination Rate: 19.7% for Grok 4 Fast and 12.9% for MiniMax-M2.7.
  • MiniMax-M2.7 has downloadable open weights; the other is API-only.

Side by side

Grok 4 FastMiniMax-M2.7
ProviderxAIMiniMax
Noometry Index39.437.7
Released2025-09-192026-03-18
WeightsProprietaryOpen
Context window—205K
Max output—131K
Input $ / M tokens—$0.30
Output $ / M tokens—$1.20
Results tracked3030

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Category by category

Coding MiniMax-M2.7 leads

Grok 4 Fast: 32.5 (#271), MiniMax-M2.7: 41.8 (#120)

BenchmarkGrok 4 FastMiniMax-M2.7
LMArena WebDev11591398
WeirdML42.9%37%
LMArena Coding14291454
SciCode—47%
ALE-Bench—599.25

Agentic & Tool Use Grok 4 Fast leads

Grok 4 Fast: 29.5 (#86), MiniMax-M2.7: 25.1 (#111)

BenchmarkGrok 4 FastMiniMax-M2.7
Terminal-Bench—45.1%
τ²-bench Banking15.7%—
Cybench30%—
ExploitBench—13.3%
GBAEval—0%
LMArena Search1171—

Reasoning Grok 4 Fast leads

Grok 4 Fast: 22.2 (#201), MiniMax-M2.7: 19.7 (#253)

BenchmarkGrok 4 FastMiniMax-M2.7
LMArena Hard Prompts14121422
Epoch Capabilities Index144.2145.85
ARC-AGI-25.3%—
Kagi LLM Benchmark66.1%—
NYT Connections (extended)—24.7%
ARC-AGI-148.5%—
CritPt—0.6%
Thematic Generalization—39.3%
DTBench82.7%—
ForecastBench60.5—

Math Grok 4 Fast leads

Grok 4 Fast: 38.9 (#123), MiniMax-M2.7: 25.9 (#263)

BenchmarkGrok 4 FastMiniMax-M2.7
LMArena Math14191420
ProofBench—3%

Knowledge MiniMax-M2.7 leads

Grok 4 Fast: 32.0 (#214), MiniMax-M2.7: 37.7 (#152)

BenchmarkGrok 4 FastMiniMax-M2.7
Vectara Hallucination Rate19.7%12.9%
LMArena Expert14111444

Multilingual Too close to call

Grok 4 Fast: 51.3 (#111), MiniMax-M2.7: 50.3 (#123)

BenchmarkGrok 4 FastMiniMax-M2.7
LMArena Non-English13961382
LMArena Chinese14571441
LMArena French14311421
LMArena German13831398
LMArena Japanese13521262
LMArena Korean13571313
LMArena Russian13891383
LMArena Spanish14151403

Instruction Following Too close to call

Grok 4 Fast: 73.2 (#121), MiniMax-M2.7: 74.1 (#103)

BenchmarkGrok 4 FastMiniMax-M2.7
LMArena Instruction Following13871405

Long Context Grok 4 Fast leads

Grok 4 Fast: 63.2 (#3), MiniMax-M2.7: 43.3 (#99)

BenchmarkGrok 4 FastMiniMax-M2.7
LMArena Longer Query14151419
Fiction.LiveBench94.4%—

Writing & Preference Grok 4 Fast leads

Grok 4 Fast: 60.0 (#102), MiniMax-M2.7: 58.9 (#112)

BenchmarkGrok 4 FastMiniMax-M2.7
LMArena Text14071405
LMArena Creative Writing13871354
LMArena Multi-Turn14141412

Frequently asked questions

Is Grok 4 Fast better than MiniMax-M2.7?

Grok 4 Fast is the stronger model overall, scoring 39.4 to 37.7 on the Noometry Index.

Is Grok 4 Fast or MiniMax-M2.7 better for coding?

MiniMax-M2.7 scores higher on coding benchmarks: 41.8 versus 32.5 in the Noometry coding category.

How many benchmarks do Grok 4 Fast and MiniMax-M2.7 share?

21 benchmarks have published results for both models. Grok 4 Fast has 30 scored results on Noometry and MiniMax-M2.7 has 30.

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