Noometry

Model comparison

GPT-5.5 Pro vs MiniMax-M2.7

GPT-5.5 Pro is the stronger model overall, scoring 64.3 to 37.4 on the Noometry Index. MiniMax-M2.7 costs 129× less per token, which makes it the better buy when GPT-5.5 Pro's lead doesn't matter for your workload.

Last verified . 2 shared benchmarks.

GPT-5.5 Pro OpenAI

64.3

Rank #7 Confirmed

MiniMax-M2.7 MiniMax

37.4

Rank #188 Confirmed

Summary

  • They share 2 benchmarks with published results for both. GPT-5.5 Pro scores higher in 3 categories and MiniMax-M2.7 in 0 categories; 3 gaps are clear of the uncertainty.
  • The widest gap is in math, where GPT-5.5 Pro leads 83.8 to 24.9.
  • The biggest single-benchmark swing is CritPt: 30.6% for GPT-5.5 Pro and 0.6% for MiniMax-M2.7.
  • MiniMax-M2.7 is cheaper at $0.30 / $1.20 per million input/output tokens, against $30 / $180 for GPT-5.5 Pro.
  • GPT-5.5 Pro accepts more context: 1.05M tokens versus 205K.
  • MiniMax-M2.7 has downloadable open weights; the other is API-only.

Side by side

GPT-5.5 ProMiniMax-M2.7
ProviderOpenAIMiniMax
Noometry Index64.337.4
Released2026-04-232026-03-18
WeightsProprietaryOpen
Context window1.05M205K
Max output128K131K
Input $ / M tokens$30$0.30
Output $ / M tokens$180$1.20
Results tracked1430

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Category by category

Coding Not comparable

GPT-5.5 Pro: —, MiniMax-M2.7: 41.4 (#115)

BenchmarkGPT-5.5 ProMiniMax-M2.7
LMArena WebDev—1397
SciCode—47%
WeirdML—37%
LMArena Coding—1454
ALE-Bench—599.25

Agentic & Tool Use Not comparable

GPT-5.5 Pro: —, MiniMax-M2.7: 24.9 (#103)

BenchmarkGPT-5.5 ProMiniMax-M2.7
Terminal-Bench—45.1%
ExploitBench—13.3%
GBAEval—0%

Reasoning GPT-5.5 Pro leads

GPT-5.5 Pro: 73.6 (#7), MiniMax-M2.7: 19.0 (#248)

BenchmarkGPT-5.5 ProMiniMax-M2.7
CritPt30.6%0.6%
Epoch Capabilities Index162.45145.84
ARC-AGI-284.6%—
SimpleBench76.9%—
NYT Connections (extended)—24.7%
ARC-AGI-196.5%—
Chess Puzzles64%—
Thematic Generalization—39.3%
LMArena Hard Prompts—1422
DTBench96%—
LMCA53.9%—

Math GPT-5.5 Pro leads

GPT-5.5 Pro: 83.8 (#8), MiniMax-M2.7: 24.9 (#254)

BenchmarkGPT-5.5 ProMiniMax-M2.7
FrontierMath (Tiers 1-3)87.7%—
FrontierMath Tier 478%—
OTIS Mock AIME 2024-2025100%—
ProofBench—3%
LMArena Math—1420
FrontierMath (Feb 2025 set)52.4%—
FrontierMath Tier 4 (v1)39.6%—

Knowledge GPT-5.5 Pro leads

GPT-5.5 Pro: 64.2 (#17), MiniMax-M2.7: 37.1 (#151)

BenchmarkGPT-5.5 ProMiniMax-M2.7
GPQA Diamond93.9%—
Vectara Hallucination Rate—12.9%
LMArena Expert—1443

Multilingual Not comparable

GPT-5.5 Pro: —, MiniMax-M2.7: 50.5 (#120)

BenchmarkGPT-5.5 ProMiniMax-M2.7
LMArena Non-English—1382
LMArena Chinese—1439
LMArena French—1422
LMArena German—1398
LMArena Japanese—1261
LMArena Korean—1313
LMArena Russian—1383
LMArena Spanish—1403

Instruction Following Not comparable

GPT-5.5 Pro: —, MiniMax-M2.7: 74.2 (#101)

BenchmarkGPT-5.5 ProMiniMax-M2.7
LMArena Instruction Following—1404

Long Context Not comparable

GPT-5.5 Pro: —, MiniMax-M2.7: 43.3 (#94)

BenchmarkGPT-5.5 ProMiniMax-M2.7
LMArena Longer Query—1419

Writing & Preference Not comparable

GPT-5.5 Pro: —, MiniMax-M2.7: 59.1 (#107)

BenchmarkGPT-5.5 ProMiniMax-M2.7
LMArena Text—1404
LMArena Creative Writing—1354
LMArena Multi-Turn—1413

Frequently asked questions

Is GPT-5.5 Pro better than MiniMax-M2.7?

GPT-5.5 Pro is the stronger model overall, scoring 64.3 to 37.4 on the Noometry Index. MiniMax-M2.7 costs 129× less per token, which makes it the better buy when GPT-5.5 Pro's lead doesn't matter for your workload.

Which is cheaper, GPT-5.5 Pro or MiniMax-M2.7?

MiniMax-M2.7 is cheaper. It lists at $0.30 per million input tokens and $1.20 per million output tokens; GPT-5.5 Pro lists at $30 and $180.

Which has the bigger context window?

GPT-5.5 Pro does, with 1.05M tokens against 205K.

How many benchmarks do GPT-5.5 Pro and MiniMax-M2.7 share?

2 benchmarks have published results for both models. GPT-5.5 Pro has 14 scored results on Noometry and MiniMax-M2.7 has 30.

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