Noometry

Model comparison

Grok-3 mini vs MiniMax-M2.5

Grok-3 mini is the stronger model overall, scoring 41.2 to 38.3 on the Noometry Index.

Last verified . 21 shared benchmarks.

Grok-3 mini xAI

41.2

Rank #141 Confirmed

MiniMax-M2.5 MiniMax

38.3

Rank #188 Confirmed

Summary

  • They share 21 benchmarks with published results for both. Grok-3 mini scores higher in 5 categories and MiniMax-M2.5 in 3 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in math, where Grok-3 mini leads 42.1 to 26.9.
  • The biggest single-benchmark swing is ARC-AGI-1: 16.5% for Grok-3 mini and 63.7% for MiniMax-M2.5.
  • MiniMax-M2.5 has downloadable open weights; the other is API-only.

Side by side

Grok-3 miniMiniMax-M2.5
ProviderxAIMiniMax
Noometry Index41.238.3
Released2025-04-092026-02-12
WeightsProprietaryOpen
Context window—205K
Max output—131K
Input $ / M tokens—$0.30
Output $ / M tokens—$1.20
Results tracked3533

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Category by category

Coding MiniMax-M2.5 leads

Grok-3 mini: 40.8 (#131), MiniMax-M2.5: 48.1 (#58)

BenchmarkGrok-3 miniMiniMax-M2.5
LMArena Coding13791381
SWE-bench Verified (bash only)—75.8%
Aider Polyglot49.3%—
LMArena WebDev—1387
SWE-bench Multilingual—68.3%
WeirdML42.6%—
ALE-Bench—618.17

Agentic & Tool Use Not comparable

Grok-3 mini: —, MiniMax-M2.5: 30.4 (#77)

BenchmarkGrok-3 miniMiniMax-M2.5
Terminal-Bench—42.7%
Vending-Bench 2—-23.16

Reasoning MiniMax-M2.5 leads

Grok-3 mini: 13.6 (#334), MiniMax-M2.5: 17.5 (#292)

BenchmarkGrok-3 miniMiniMax-M2.5
ARC-AGI-20.4%4.9%
Kagi LLM Benchmark61.3%55.2%
ARC-AGI-116.5%63.7%
LMArena Hard Prompts13751372
Epoch Capabilities Index140.35146.68
NYT Connections (extended)—16.8%

Math Grok-3 mini leads

Grok-3 mini: 42.1 (#85), MiniMax-M2.5: 26.9 (#253)

BenchmarkGrok-3 miniMiniMax-M2.5
LMArena Math13861378
OTIS Mock AIME 2024-202577.8%—
ProofBench—4%
Omni-MATH31.8%—
MATH Level 590.9%—
FrontierMath (Feb 2025 set)5.9%—

Knowledge Grok-3 mini leads

Grok-3 mini: 46.4 (#81), MiniMax-M2.5: 39.2 (#135)

BenchmarkGrok-3 miniMiniMax-M2.5
LMArena Expert13951379
GPQA Diamond76.3%—
MMLU-Pro79.9%—
Confabulations10.8%—
Vectara Hallucination Rate—9.1%
GPQA (HELM)67.5%—

Multilingual Grok-3 mini leads

Grok-3 mini: 48.1 (#145), MiniMax-M2.5: 47.1 (#152)

BenchmarkGrok-3 miniMiniMax-M2.5
LMArena Non-English13521338
LMArena Chinese13871393
LMArena French13571362
LMArena German13491362
LMArena Japanese13421171
LMArena Korean13351232
LMArena Russian13531358
LMArena Spanish13811354

Instruction Following Grok-3 mini leads

Grok-3 mini: 78.5 (#9), MiniMax-M2.5: 71.5 (#148)

BenchmarkGrok-3 miniMiniMax-M2.5
LMArena Instruction Following13571353
IFEval95.1%—

Long Context Grok-3 mini leads

Grok-3 mini: 41.0 (#147), MiniMax-M2.5: 37.5 (#216)

BenchmarkGrok-3 miniMiniMax-M2.5
LMArena Longer Query13721366
Fiction.LiveBench66.7%—
CL-bench—11.4%
CL-bench Life—6.3%

Writing & Preference MiniMax-M2.5 leads

Grok-3 mini: 52.5 (#169), MiniMax-M2.5: 53.9 (#153)

BenchmarkGrok-3 miniMiniMax-M2.5
LMArena Text13701359
LMArena Creative Writing13421331
LMArena Multi-Turn13551364
Short-Story Creative Writing73.5%—
EQ-Bench Creative Writing—1361
WildBench65.1%—

Frequently asked questions

Is Grok-3 mini better than MiniMax-M2.5?

Grok-3 mini is the stronger model overall, scoring 41.2 to 38.3 on the Noometry Index.

Is Grok-3 mini or MiniMax-M2.5 better for coding?

MiniMax-M2.5 scores higher on coding benchmarks: 48.1 versus 40.8 in the Noometry coding category.

How many benchmarks do Grok-3 mini and MiniMax-M2.5 share?

21 benchmarks have published results for both models. Grok-3 mini has 35 scored results on Noometry and MiniMax-M2.5 has 33.

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