Model comparison

GPT-4.5 vs MiniMax-M3

MiniMax-M3 is the stronger model overall, scoring 43.8 to 37.2 on the Noometry Index.

Last verified . 22 shared benchmarks.

GPT-4.5 OpenAI

37.2

Rank #208 Confirmed

MiniMax-M3 MiniMax

43.8

Rank #85 Confirmed

Summary

  • They share 22 benchmarks with published results for both. GPT-4.5 scores higher in 2 categories and MiniMax-M3 in 8 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in knowledge, where MiniMax-M3 leads 58.4 to 32.5.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 37.8% for GPT-4.5 and 71.1% for MiniMax-M3.
  • MiniMax-M3 has downloadable open weights; the other is API-only.

Side by side

GPT-4.5 and MiniMax-M3 specifications
GPT-4.5MiniMax-M3
ProviderOpenAIMiniMax
Noometry Index37.243.8
Released2025-02-272026-06-01
WeightsProprietaryOpen
Context window—1M
Max output—512K
Input $ / M tokens—$0.30
Output $ / M tokens—$1.20
Results tracked4241

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Category by category

Coding Too close to call

GPT-4.5: 42.2 (#109), MiniMax-M3: 41.8 (#118)

Coding benchmarks
BenchmarkGPT-4.5MiniMax-M3
LMArena Coding13961469
FrontierCode—14.7%
Aider Polyglot44.9%—
LMArena WebDev—1482
SciCode—47.1%
WeirdML39.4%—
LiveBench Coding75.2%—
ALE-Bench—640.02

Agentic & Tool Use GPT-4.5 leads

GPT-4.5: 27.9 (#97), MiniMax-M3: 22.6 (#130)

Agentic & Tool Use benchmarks
BenchmarkGPT-4.5MiniMax-M3
APEX-Agents—37.7%
OSWorld 2.0—4.6%
Cybench17.5%—
GBAEval—0.9%
Vending-Bench 2—2,158

Reasoning MiniMax-M3 leads

GPT-4.5: 13.9 (#330), MiniMax-M3: 30.1 (#87)

Reasoning benchmarks
BenchmarkGPT-4.5MiniMax-M3
SimpleBench34.5%45.8%
LMArena Hard Prompts14031447
Epoch Capabilities Index136.74146.95
ForecastBench61.761.4
ARC-AGI-20.8%—
NYT Connections (extended)—65.1%
ARC-AGI-110.3%—
CritPt—3.7%
Chess Puzzles—14%
EnigmaEval3.2%—
LiveBench Reasoning71.1%—
Mystery Game Puzzles—8%
DTBench—78.9%
LiveBench Data Analysis64.3%—
LMCA—33.7%
Surface Evolver Bench—55%
LiveBench69%—

Math MiniMax-M3 leads

GPT-4.5: 32.6 (#211), MiniMax-M3: 40.0 (#95)

Math benchmarks
BenchmarkGPT-4.5MiniMax-M3
OTIS Mock AIME 2024-202537.8%71.1%
LMArena Math14121429
ProofBench—18%
LiveBench Math69.3%—
MATH Level 578.6%—

Knowledge MiniMax-M3 leads

GPT-4.5: 32.5 (#211), MiniMax-M3: 58.4 (#35)

Knowledge benchmarks
BenchmarkGPT-4.5MiniMax-M3
GPQA Diamond68.7%90.9%
LMArena Expert13941461
Humanity's Last Exam5.4%—
Confabulations13.6%—

Multimodal MiniMax-M3 leads

GPT-4.5: 37.6 (#71), MiniMax-M3: 40.2 (#51)

Multimodal benchmarks
BenchmarkGPT-4.5MiniMax-M3
LMArena Vision11951253
VPCT45%—
LMArena Document—1435

Multilingual Too close to call

GPT-4.5: 52.5 (#83), MiniMax-M3: 53.0 (#75)

Multilingual benchmarks
BenchmarkGPT-4.5MiniMax-M3
LMArena Non-English14131420
LMArena Chinese14211463
LMArena French14181447
LMArena German14571426
LMArena Japanese14161381
LMArena Korean13921372
LMArena Russian14191428
LMArena Spanish—1432

Instruction Following MiniMax-M3 leads

GPT-4.5: 72.6 (#134), MiniMax-M3: 75.5 (#62)

Instruction Following benchmarks
BenchmarkGPT-4.5MiniMax-M3
LMArena Instruction Following14041433
LiveBench Instruction Following72.3%—

Long Context MiniMax-M3 leads

GPT-4.5: 40.4 (#155), MiniMax-M3: 44.2 (#72)

Long Context benchmarks
BenchmarkGPT-4.5MiniMax-M3
LMArena Longer Query14061445
Fiction.LiveBench63.9%—

Writing & Preference MiniMax-M3 leads

GPT-4.5: 56.9 (#134), MiniMax-M3: 62.1 (#83)

Writing & Preference benchmarks
BenchmarkGPT-4.5MiniMax-M3
LMArena Text14171433
LMArena Creative Writing13941404
LMArena Multi-Turn14441442
Short-Story Creative Writing75.6%—
EQ-Bench Creative Writing1258—
EQ-Bench 4—1150
LiveBench Language61.5%—

Frequently asked questions

Is GPT-4.5 better than MiniMax-M3?

MiniMax-M3 is the stronger model overall, scoring 43.8 to 37.2 on the Noometry Index.

Is GPT-4.5 or MiniMax-M3 better for coding?

They score almost the same on coding (42.2 vs 41.8); test both on your own repository before choosing.

How many benchmarks do GPT-4.5 and MiniMax-M3 share?

22 benchmarks have published results for both models. GPT-4.5 has 42 scored results on Noometry and MiniMax-M3 has 41.

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