Model comparison

GPT-5 Nano vs MiniMax-M3

MiniMax-M3 is the stronger model overall, scoring 43.5 to 33.4 on the Noometry Index. GPT-5 Nano costs 3.8× less per token, which makes it the better buy when MiniMax-M3's lead doesn't matter for your workload.

Last verified . 26 shared benchmarks.

GPT-5 Nano OpenAI

33.4

Rank #234 Confirmed

MiniMax-M3 MiniMax

43.5

Rank #81 Confirmed

Summary

  • They share 26 benchmarks with published results for both. GPT-5 Nano scores higher in 1 category and MiniMax-M3 in 9 categories; 9 gaps are clear of the uncertainty.
  • The widest gap is in writing & preference, where MiniMax-M3 leads 62.3 to 39.4.
  • The biggest single-benchmark swing is LMCA: 7.9% for GPT-5 Nano and 33.7% for MiniMax-M3.
  • GPT-5 Nano is cheaper at $0.05 / $0.40 per million input/output tokens, against $0.30 / $1.20 for MiniMax-M3.
  • 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 Nano and MiniMax-M3 specifications
GPT-5 NanoMiniMax-M3
ProviderOpenAIMiniMax
Noometry Index33.443.5
Released2025-08-072026-06-01
WeightsProprietaryOpen
Context window400K1M
Max output128K512K
Input $ / M tokens$0.05$0.30
Output $ / M tokens$0.40$1.20
Results tracked4841

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Category by category

Coding MiniMax-M3 leads

GPT-5 Nano: 33.3 (#248), MiniMax-M3: 41.5 (#111)

Coding benchmarks
BenchmarkGPT-5 NanoMiniMax-M3
LMArena Coding13511470
ALE-Bench718.67640.02
FrontierCode—14.7%
SWE-bench Verified (bash only)34.8%—
LMArena WebDev—1482
SciCode—47.1%
WeirdML38.1%—

Agentic & Tool Use GPT-5 Nano leads

GPT-5 Nano: 25.6 (#99), MiniMax-M3: 22.5 (#121)

Agentic & Tool Use benchmarks
BenchmarkGPT-5 NanoMiniMax-M3
Terminal-Bench21.8%—
APEX-Agents—37.7%
Berkeley Function Calling Leaderboard51.5%—
OSWorld 2.0—4.6%
GBAEval—0.9%
Vending-Bench 2—2,158

Reasoning MiniMax-M3 leads

GPT-5 Nano: 16.4 (#291), MiniMax-M3: 29.3 (#83)

Reasoning benchmarks
BenchmarkGPT-5 NanoMiniMax-M3
Chess Puzzles27%14%
LMArena Hard Prompts13291447
Mystery Game Puzzles9%8%
DTBench62.7%78.9%
LMCA7.9%33.7%
Epoch Capabilities Index139.39147
ForecastBench59.161.4
ARC-AGI-22.6%—
SimpleBench—45.8%
Kagi LLM Benchmark62.2%—
NYT Connections (extended)—65.1%
ARC-AGI-120.7%—
CritPt—3.7%
Surface Evolver Bench—55%

Math MiniMax-M3 leads

GPT-5 Nano: 29.1 (#221), MiniMax-M3: 39.1 (#83)

Math benchmarks
BenchmarkGPT-5 NanoMiniMax-M3
OTIS Mock AIME 2024-202581.1%71.1%
ProofBench12%18%
LMArena Math13181432
FrontierMath (Tiers 1-3)20%—
FrontierMath Tier 42.4%—
Omni-MATH54.6%—
MATH Level 595.2%—
FrontierMath (Feb 2025 set)8.3%—
FrontierMath Tier 4 (v1)2.1%—

Knowledge MiniMax-M3 leads

GPT-5 Nano: 35.8 (#166), MiniMax-M3: 58.4 (#32)

Knowledge benchmarks
BenchmarkGPT-5 NanoMiniMax-M3
GPQA Diamond69.4%90.9%
LMArena Expert13211462
SimpleQA Verified11.7%—
MMLU-Pro77.8%—
Vectara Hallucination Rate10.5%—
GPQA (HELM)67.9%—

Multimodal MiniMax-M3 leads

GPT-5 Nano: 30.7 (#102), MiniMax-M3: 39.5 (#45)

Multimodal benchmarks
BenchmarkGPT-5 NanoMiniMax-M3
LMArena Vision11591254
VPCT37.2%—
LMArena Document—1435

Multilingual MiniMax-M3 leads

GPT-5 Nano: 45.5 (#167), MiniMax-M3: 53.2 (#70)

Multilingual benchmarks
BenchmarkGPT-5 NanoMiniMax-M3
LMArena Non-English13131420
LMArena Chinese13551465
LMArena German13291424
LMArena Korean12691372
LMArena Russian12961430
LMArena Spanish13601431
LMArena French—1445
LMArena Japanese—1381

Instruction Following Too close to call

GPT-5 Nano: 75.2 (#72), MiniMax-M3: 75.7 (#56)

Instruction Following benchmarks
BenchmarkGPT-5 NanoMiniMax-M3
LMArena Instruction Following13061433
IFEval93.2%—

Long Context MiniMax-M3 leads

GPT-5 Nano: 31.3 (#275), MiniMax-M3: 44.2 (#68)

Long Context benchmarks
BenchmarkGPT-5 NanoMiniMax-M3
LMArena Longer Query13131445
Fiction.LiveBench44.4%—

Writing & Preference MiniMax-M3 leads

GPT-5 Nano: 39.4 (#244), MiniMax-M3: 62.3 (#79)

Writing & Preference benchmarks
BenchmarkGPT-5 NanoMiniMax-M3
LMArena Text13201433
LMArena Creative Writing12501405
LMArena Multi-Turn13111441
EQ-Bench Creative Writing705—
WildBench80.6%—
EQ-Bench 4—1150

Frequently asked questions

Is GPT-5 Nano better than MiniMax-M3?

MiniMax-M3 is the stronger model overall, scoring 43.5 to 33.4 on the Noometry Index. GPT-5 Nano costs 3.8× less per token, which makes it the better buy when MiniMax-M3's lead doesn't matter for your workload.

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

GPT-5 Nano is cheaper. It lists at $0.05 per million input tokens and $0.40 per million output tokens; MiniMax-M3 lists at $0.30 and $1.20.

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

MiniMax-M3 scores higher on coding benchmarks: 41.5 versus 33.3 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 Nano and MiniMax-M3 share?

26 benchmarks have published results for both models. GPT-5 Nano has 48 scored results on Noometry and MiniMax-M3 has 41.

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