Model comparison

GPT-5 Pro vs MiniMax-M3

GPT-5 Pro is the stronger model overall, scoring 46.4 to 43.8 on the Noometry Index. MiniMax-M3 costs 79× less per token, which makes it the better buy when GPT-5 Pro's lead doesn't matter for your workload.

Last verified . 2 shared benchmarks.

GPT-5 Pro OpenAI

46.4

Rank #64 Confirmed

MiniMax-M3 MiniMax

43.8

Rank #85 Confirmed

Summary

  • They share 2 benchmarks with published results for both. GPT-5 Pro scores higher in 3 categories and MiniMax-M3 in 1 category; 4 gaps are clear of the uncertainty.
  • The widest gap is in reasoning, where GPT-5 Pro leads 38.9 to 30.1.
  • The biggest single-benchmark swing is SimpleBench: 61.6% for GPT-5 Pro and 45.8% for MiniMax-M3.
  • MiniMax-M3 is cheaper at $0.30 / $1.20 per million input/output tokens, against $15 / $120 for GPT-5 Pro.
  • MiniMax-M3 accepts more context: 1M tokens versus 400K.
  • MiniMax-M3 has downloadable open weights; the other is API-only.

Side by side

GPT-5 Pro and MiniMax-M3 specifications
GPT-5 ProMiniMax-M3
ProviderOpenAIMiniMax
Noometry Index46.443.8
Released2025-10-062026-06-01
WeightsProprietaryOpen
Context window400K1M
Max output272K512K
Input $ / M tokens$15$0.30
Output $ / M tokens$120$1.20
Results tracked1241

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Category by category

Coding GPT-5 Pro leads

GPT-5 Pro: 44.0 (#80), MiniMax-M3: 41.8 (#118)

Coding benchmarks
BenchmarkGPT-5 ProMiniMax-M3
FrontierCode—14.7%
LMArena WebDev—1482
SciCode—47.1%
WeirdML60.4%—
LMArena Coding—1469
ALE-Bench—640.02
AlgoTune1.31—

Agentic & Tool Use Not comparable

GPT-5 Pro: —, MiniMax-M3: 22.6 (#130)

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

Reasoning GPT-5 Pro leads

GPT-5 Pro: 38.9 (#62), MiniMax-M3: 30.1 (#87)

Reasoning benchmarks
BenchmarkGPT-5 ProMiniMax-M3
SimpleBench61.6%45.8%
Epoch Capabilities Index150.28146.95
ARC-AGI-218.3%—
Kagi LLM Benchmark76.8%—
NYT Connections (extended)—65.1%
ARC-AGI-170.2%—
CritPt—3.7%
Chess Puzzles—14%
EnigmaEval18.8%—
LMArena Hard Prompts—1447
Mystery Game Puzzles—8%
DTBench—78.9%
LMCA—33.7%
Surface Evolver Bench—55%
ForecastBench—61.4

Math GPT-5 Pro leads

GPT-5 Pro: 48.5 (#63), MiniMax-M3: 40.0 (#95)

Math benchmarks
BenchmarkGPT-5 ProMiniMax-M3
FrontierMath (Tiers 1-3)55.8%—
FrontierMath Tier 419.5%—
OTIS Mock AIME 2024-2025—71.1%
ProofBench—18%
LMArena Math—1429
FrontierMath Tier 4 (v1)14.6%—

Knowledge MiniMax-M3 leads

GPT-5 Pro: 56.7 (#42), MiniMax-M3: 58.4 (#35)

Knowledge benchmarks
BenchmarkGPT-5 ProMiniMax-M3
GPQA Diamond—90.9%
Humanity's Last Exam31.6%—
LMArena Expert—1461

Multimodal Not comparable

GPT-5 Pro: —, MiniMax-M3: 40.2 (#51)

Multimodal benchmarks
BenchmarkGPT-5 ProMiniMax-M3
LMArena Vision—1253
LMArena Document—1435

Multilingual Not comparable

GPT-5 Pro: —, MiniMax-M3: 53.0 (#75)

Multilingual benchmarks
BenchmarkGPT-5 ProMiniMax-M3
LMArena Non-English—1420
LMArena Chinese—1463
LMArena French—1447
LMArena German—1426
LMArena Japanese—1381
LMArena Korean—1372
LMArena Russian—1428
LMArena Spanish—1432

Instruction Following Not comparable

GPT-5 Pro: —, MiniMax-M3: 75.5 (#62)

Instruction Following benchmarks
BenchmarkGPT-5 ProMiniMax-M3
LMArena Instruction Following—1433

Long Context Not comparable

GPT-5 Pro: —, MiniMax-M3: 44.2 (#72)

Long Context benchmarks
BenchmarkGPT-5 ProMiniMax-M3
LMArena Longer Query—1445

Writing & Preference Not comparable

GPT-5 Pro: —, MiniMax-M3: 62.1 (#83)

Writing & Preference benchmarks
BenchmarkGPT-5 ProMiniMax-M3
LMArena Text—1433
LMArena Creative Writing—1404
EQ-Bench 4—1150
LMArena Multi-Turn—1442

Frequently asked questions

Is GPT-5 Pro better than MiniMax-M3?

GPT-5 Pro is the stronger model overall, scoring 46.4 to 43.8 on the Noometry Index. MiniMax-M3 costs 79× less per token, which makes it the better buy when GPT-5 Pro's lead doesn't matter for your workload.

Which is cheaper, GPT-5 Pro or MiniMax-M3?

MiniMax-M3 is cheaper. It lists at $0.30 per million input tokens and $1.20 per million output tokens; GPT-5 Pro lists at $15 and $120.

Is GPT-5 Pro or MiniMax-M3 better for coding?

GPT-5 Pro scores higher on coding benchmarks: 44.0 versus 41.8 in the Noometry coding category.

Which has the bigger context window?

MiniMax-M3 does, with 1M tokens against 400K.

How many benchmarks do GPT-5 Pro and MiniMax-M3 share?

2 benchmarks have published results for both models. GPT-5 Pro has 12 scored results on Noometry and MiniMax-M3 has 41.

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