Model comparison

GPT-5 Nano vs MiniMax-M2

MiniMax-M2 is the stronger model overall, scoring 37.4 to 33.5 on the Noometry Index. GPT-5 Nano costs 3.8× less per token, which makes it the better buy when MiniMax-M2's lead doesn't matter for your workload.

Last verified . 17 shared benchmarks.

GPT-5 Nano OpenAI

33.5

Rank #241 Confirmed

MiniMax-M2 MiniMax

37.4

Rank #204 Confirmed

Summary

  • They share 17 benchmarks with published results for both. GPT-5 Nano scores higher in 2 categories and MiniMax-M2 in 7 categories; 7 gaps are clear of the uncertainty.
  • The widest gap is in writing & preference, where MiniMax-M2 leads 53.0 to 39.1.
  • The biggest single-benchmark swing is SWE-bench Verified (bash only): 34.8% for GPT-5 Nano and 61% for MiniMax-M2.
  • GPT-5 Nano is cheaper at $0.05 / $0.40 per million input/output tokens, against $0.30 / $1.20 for MiniMax-M2.
  • GPT-5 Nano accepts more context: 400K tokens versus 205K.
  • MiniMax-M2 has downloadable open weights; the other is API-only.

Side by side

GPT-5 Nano and MiniMax-M2 specifications
GPT-5 NanoMiniMax-M2
ProviderOpenAIMiniMax
Noometry Index33.537.4
Released2025-08-072025-10-27
WeightsProprietaryOpen
Context window400K205K
Max output128K131K
Input $ / M tokens$0.05$0.30
Output $ / M tokens$0.40$1.20
Results tracked4921

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Category by category

Coding MiniMax-M2 leads

GPT-5 Nano: 33.6 (#254), MiniMax-M2: 39.3 (#159)

Coding benchmarks
BenchmarkGPT-5 NanoMiniMax-M2
SWE-bench Verified (bash only)34.8%61%
LMArena Coding13511370
LMArena WebDev—1297
WeirdML38.1%—
ALE-Bench718.67—

Agentic & Tool Use Too close to call

GPT-5 Nano: 25.8 (#106), MiniMax-M2: 25.1 (#109)

Agentic & Tool Use benchmarks
BenchmarkGPT-5 NanoMiniMax-M2
Terminal-Bench21.8%30%
Berkeley Function Calling Leaderboard51.5%—
Vending-Bench 2—160.6

Reasoning MiniMax-M2 leads

GPT-5 Nano: 16.3 (#306), MiniMax-M2: 19.4 (#258)

Reasoning benchmarks
BenchmarkGPT-5 NanoMiniMax-M2
Kagi LLM Benchmark62.2%57.8%
LMArena Hard Prompts13281357
ARC-AGI-22.6%—
NYT Connections (extended)—14.8%
ARC-AGI-120.7%—
Chess Puzzles27%—
Mystery Game Puzzles9%—
DTBench62.7%—
LMCA7.9%—
Epoch Capabilities Index139.38—
ForecastBench59.1—

Math MiniMax-M2 leads

GPT-5 Nano: 29.4 (#241), MiniMax-M2: 37.3 (#160)

Math benchmarks
BenchmarkGPT-5 NanoMiniMax-M2
LMArena Math13171352
FrontierMath (Tiers 1-3)20%—
FrontierMath Tier 42.4%—
OTIS Mock AIME 2024-202581.1%—
ProofBench12%—
Omni-MATH54.6%—
MATH Level 595.2%—
FrontierMath (Feb 2025 set)8.3%—
FrontierMath Tier 4 (v1)2.1%—

Knowledge MiniMax-M2 leads

GPT-5 Nano: 35.9 (#178), MiniMax-M2: 37.0 (#163)

Knowledge benchmarks
BenchmarkGPT-5 NanoMiniMax-M2
LMArena Expert13211337
GPQA Diamond69.4%—
SimpleQA Verified11.7%—
MMLU-Pro77.8%—
Vectara Hallucination Rate10.5%—
GPQA (HELM)67.9%—

Multimodal Not comparable

GPT-5 Nano: 31.3 (#108), MiniMax-M2: —

Multimodal benchmarks
BenchmarkGPT-5 NanoMiniMax-M2
LMArena Vision1159—
VPCT37.2%—

Multilingual Too close to call

GPT-5 Nano: 45.3 (#172), MiniMax-M2: 45.3 (#171)

Multilingual benchmarks
BenchmarkGPT-5 NanoMiniMax-M2
LMArena Non-English13131313
LMArena Chinese13561366
LMArena German13271355
LMArena Russian12961331
LMArena Spanish13601326
LMArena French—1335
LMArena Japanese1226—
LMArena Korean1269—

Instruction Following GPT-5 Nano leads

GPT-5 Nano: 75.0 (#79), MiniMax-M2: 70.2 (#166)

Instruction Following benchmarks
BenchmarkGPT-5 NanoMiniMax-M2
LMArena Instruction Following13061328
IFEval93.2%—

Long Context MiniMax-M2 leads

GPT-5 Nano: 31.3 (#281), MiniMax-M2: 40.5 (#153)

Long Context benchmarks
BenchmarkGPT-5 NanoMiniMax-M2
LMArena Longer Query13121331
Fiction.LiveBench44.4%—

Writing & Preference MiniMax-M2 leads

GPT-5 Nano: 39.1 (#249), MiniMax-M2: 53.0 (#162)

Writing & Preference benchmarks
BenchmarkGPT-5 NanoMiniMax-M2
LMArena Text13201340
LMArena Creative Writing12491286
LMArena Multi-Turn13111361
EQ-Bench Creative Writing705—
WildBench80.6%—

Frequently asked questions

Is GPT-5 Nano better than MiniMax-M2?

MiniMax-M2 is the stronger model overall, scoring 37.4 to 33.5 on the Noometry Index. GPT-5 Nano costs 3.8× less per token, which makes it the better buy when MiniMax-M2's lead doesn't matter for your workload.

Which is cheaper, GPT-5 Nano or MiniMax-M2?

GPT-5 Nano is cheaper. It lists at $0.05 per million input tokens and $0.40 per million output tokens; MiniMax-M2 lists at $0.30 and $1.20.

Is GPT-5 Nano or MiniMax-M2 better for coding?

MiniMax-M2 scores higher on coding benchmarks: 39.3 versus 33.6 in the Noometry coding category.

Which has the bigger context window?

GPT-5 Nano does, with 400K tokens against 205K.

How many benchmarks do GPT-5 Nano and MiniMax-M2 share?

17 benchmarks have published results for both models. GPT-5 Nano has 49 scored results on Noometry and MiniMax-M2 has 21.

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