Noometry

Model comparison

Claude Opus 5.5 vs MiniMax-M2.7

Claude Opus 5.5 is the stronger model overall, scoring 68.6 to 37.7 on the Noometry Index. MiniMax-M2.7 costs 15× less per token, which makes it the better buy when Claude Opus 5.5's lead doesn't matter for your workload.

Last verified . 21 shared benchmarks.

Claude Opus 5.5 Anthropic

68.6

Rank #3 Confirmed

MiniMax-M2.7 MiniMax

37.7

Rank #196 Confirmed

Summary

  • They share 21 benchmarks with published results for both. Claude Opus 5.5 scores higher in 9 categories and MiniMax-M2.7 in 0 categories; 9 gaps are clear of the uncertainty.
  • The widest gap is in math, where Claude Opus 5.5 leads 91.8 to 25.9.
  • The biggest single-benchmark swing is ProofBench: 100% for Claude Opus 5.5 and 3% for MiniMax-M2.7.
  • MiniMax-M2.7 is cheaper at $0.30 / $1.20 per million input/output tokens, against $4 / $20 for Claude Opus 5.5.
  • Claude Opus 5.5 accepts more context: 1M tokens versus 205K.
  • MiniMax-M2.7 has downloadable open weights; the other is API-only.

Side by side

Claude Opus 5.5MiniMax-M2.7
ProviderAnthropicMiniMax
Noometry Index68.637.7
Released2026-09-222026-03-18
WeightsProprietaryOpen
Context window1M205K
Max output128K131K
Input $ / M tokens$4$0.30
Output $ / M tokens$20$1.20
Results tracked4430

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Category by category

Coding Claude Opus 5.5 leads

Claude Opus 5.5: 71.9 (#3), MiniMax-M2.7: 41.8 (#120)

BenchmarkClaude Opus 5.5MiniMax-M2.7
LMArena WebDev18131398
SciCode66.9%47%
LMArena Coding15471454
ALE-Bench2,147599.25
FrontierCode54.6%—
CursorBench57.8%—
FrontierSWE62.3%—
WeirdML—37%
MirrorCode77.4%—

Agentic & Tool Use Claude Opus 5.5 leads

Claude Opus 5.5: 45.3 (#15), MiniMax-M2.7: 25.1 (#111)

BenchmarkClaude Opus 5.5MiniMax-M2.7
Terminal-Bench—45.1%
APEX-Agents73.5%—
ExploitBench—13.3%
GBAEval—0%
GDP.pdf30.6%—
Vending-Bench 29,235—

Reasoning Claude Opus 5.5 leads

Claude Opus 5.5: 80.2 (#3), MiniMax-M2.7: 19.7 (#253)

BenchmarkClaude Opus 5.5MiniMax-M2.7
NYT Connections (extended)88.5%24.7%
CritPt31.7%0.6%
LMArena Hard Prompts15351422
Epoch Capabilities Index167.33145.85
ARC-AGI-293.3%—
ARC-AGI-198.5%—
Thematic Generalization—39.3%
EBR-Bench71.4%—
Mystery Game Puzzles71%—
DTBench98.9%—
LMCA68.2%—

Math Claude Opus 5.5 leads

Claude Opus 5.5: 91.8 (#3), MiniMax-M2.7: 25.9 (#263)

BenchmarkClaude Opus 5.5MiniMax-M2.7
ProofBench100%3%
LMArena Math15061420
FrontierMath (Tiers 1-3)91.2%—
FrontierMath Tier 495%—
OTIS Mock AIME 2024-2025100%—
FrontierMath Erdős2.9%—

Knowledge Claude Opus 5.5 leads

Claude Opus 5.5: 66.4 (#10), MiniMax-M2.7: 37.7 (#152)

BenchmarkClaude Opus 5.5MiniMax-M2.7
LMArena Expert15471444
GPQA Diamond90.6%—
SimpleQA Verified72.2%—
Vectara Hallucination Rate—12.9%

Multimodal Not comparable

Claude Opus 5.5: 57.8 (#1), MiniMax-M2.7: —

BenchmarkClaude Opus 5.5MiniMax-M2.7
LMArena Vision1321—
Blueprint-Bench 251.2%—
Furniture Assembly83.3%—

Multilingual Claude Opus 5.5 leads

Claude Opus 5.5: 59.1 (#2), MiniMax-M2.7: 50.3 (#123)

BenchmarkClaude Opus 5.5MiniMax-M2.7
LMArena Non-English15071382
LMArena Chinese15881441
LMArena French15141421
LMArena Russian15201383
LMArena Spanish15071403
LMArena German—1398
LMArena Japanese—1262
LMArena Korean—1313

Instruction Following Claude Opus 5.5 leads

Claude Opus 5.5: 80.0 (#3), MiniMax-M2.7: 74.1 (#103)

BenchmarkClaude Opus 5.5MiniMax-M2.7
LMArena Instruction Following15371405

Long Context Claude Opus 5.5 leads

Claude Opus 5.5: 47.1 (#19), MiniMax-M2.7: 43.3 (#99)

BenchmarkClaude Opus 5.5MiniMax-M2.7
LMArena Longer Query15321419

Writing & Preference Claude Opus 5.5 leads

Claude Opus 5.5: 78.2 (#3), MiniMax-M2.7: 58.9 (#112)

BenchmarkClaude Opus 5.5MiniMax-M2.7
LMArena Text15151405
LMArena Creative Writing15331354
LMArena Multi-Turn14991412
EQ-Bench Creative Writing2050—

Frequently asked questions

Is Claude Opus 5.5 better than MiniMax-M2.7?

Claude Opus 5.5 is the stronger model overall, scoring 68.6 to 37.7 on the Noometry Index. MiniMax-M2.7 costs 15× less per token, which makes it the better buy when Claude Opus 5.5's lead doesn't matter for your workload.

Which is cheaper, Claude Opus 5.5 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; Claude Opus 5.5 lists at $4 and $20.

Is Claude Opus 5.5 or MiniMax-M2.7 better for coding?

Claude Opus 5.5 scores higher on coding benchmarks: 71.9 versus 41.8 in the Noometry coding category.

Which has the bigger context window?

Claude Opus 5.5 does, with 1M tokens against 205K.

How many benchmarks do Claude Opus 5.5 and MiniMax-M2.7 share?

21 benchmarks have published results for both models. Claude Opus 5.5 has 44 scored results on Noometry and MiniMax-M2.7 has 30.

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