Model comparison

Claude Opus 5.5 vs MiniMax-M2.7

Claude Opus 5.5 is the stronger model overall, scoring 68.5 to 37.4 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 October 10, 2026. 16 shared benchmarks.

Claude Opus 5.5 Anthropic

68.5

Rank #3 Confirmed

MiniMax-M2.7

MiniMax

37.4

Rank #188 Confirmed

Summary

They share 16 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 92.4 to 24.9.
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 5.5 and MiniMax-M2.7 specifications
	Claude Opus 5.5	MiniMax-M2.7
Provider	Anthropic	MiniMax
Noometry Index	68.5	37.4
Released	2026-09-22	2026-03-18
Weights	Proprietary	Open
Context window	1M	205K
Max output	128K	131K
Input $ / M tokens	$4	$0.30
Output $ / M tokens	$20	$1.20
Results tracked	35	30

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Category by category

Coding Claude Opus 5.5 leads

Claude Opus 5.5: 71.4 (#1), MiniMax-M2.7: 41.4 (#115)

Coding benchmarks
Benchmark	Claude Opus 5.5	MiniMax-M2.7
LMArena WebDev	1820	1397
SciCode	66.9%	47%
LMArena Coding	1545	1454
FrontierCode	54.4%	—
CursorBench	57.8%	—
FrontierSWE	62.3%	—
WeirdML	—	37%
MirrorCode	77.4%	—
ALE-Bench	—	599.25

Agentic & Tool Use Claude Opus 5.5 leads

Claude Opus 5.5: 45.3 (#13), MiniMax-M2.7: 24.9 (#103)

Agentic & Tool Use benchmarks
Benchmark	Claude Opus 5.5	MiniMax-M2.7
Terminal-Bench	—	45.1%
APEX-Agents	73.5%	—
ExploitBench	—	13.3%
GBAEval	—	0%
GDP.pdf	30.6%	—

Reasoning Claude Opus 5.5 leads

Claude Opus 5.5: 79.5 (#2), MiniMax-M2.7: 19.0 (#248)

Reasoning benchmarks
Benchmark	Claude Opus 5.5	MiniMax-M2.7
NYT Connections (extended)	88.5%	24.7%
CritPt	31.7%	0.6%
LMArena Hard Prompts	1545	1422
ARC-AGI-2	92.5%	—
ARC-AGI-1	97.5%	—
Thematic Generalization	—	39.3%
EBR-Bench	71.4%	—
Mystery Game Puzzles	71%	—
DTBench	98.9%	—
LMCA	68.2%	—
Epoch Capabilities Index	—	145.84

Math Claude Opus 5.5 leads

Claude Opus 5.5: 92.4 (#2), MiniMax-M2.7: 24.9 (#254)

Math benchmarks
Benchmark	Claude Opus 5.5	MiniMax-M2.7
ProofBench	100%	3%
FrontierMath (Tiers 1-3)	91.2%	—
FrontierMath Tier 4	95%	—
OTIS Mock AIME 2024-2025	100%	—
LMArena Math	—	1420

Knowledge Claude Opus 5.5 leads

Claude Opus 5.5: 66.6 (#9), MiniMax-M2.7: 37.1 (#151)

Knowledge benchmarks
Benchmark	Claude Opus 5.5	MiniMax-M2.7
LMArena Expert	1564	1443
GPQA Diamond	90.6%	—
SimpleQA Verified	72.2%	—
Vectara Hallucination Rate	—	12.9%

Multimodal Not comparable

Claude Opus 5.5: 56.5 (#2), MiniMax-M2.7: —

Multimodal benchmarks
Benchmark	Claude Opus 5.5	MiniMax-M2.7
Furniture Assembly	83.3%	—

Multilingual Claude Opus 5.5 leads

Claude Opus 5.5: 59.8 (#1), MiniMax-M2.7: 50.5 (#120)

Multilingual benchmarks
Benchmark	Claude Opus 5.5	MiniMax-M2.7
LMArena Non-English	1513	1382
LMArena Chinese	1572	1439
LMArena Russian	1532	1383
LMArena French	—	1422
LMArena German	—	1398
LMArena Japanese	—	1261
LMArena Korean	—	1313
LMArena Spanish	—	1403

Instruction Following Claude Opus 5.5 leads

Claude Opus 5.5: 80.1 (#2), MiniMax-M2.7: 74.2 (#101)

Instruction Following benchmarks
Benchmark	Claude Opus 5.5	MiniMax-M2.7
LMArena Instruction Following	1535	1404

Long Context Claude Opus 5.5 leads

Claude Opus 5.5: 47.3 (#18), MiniMax-M2.7: 43.3 (#94)

Long Context benchmarks
Benchmark	Claude Opus 5.5	MiniMax-M2.7
LMArena Longer Query	1540	1419

Writing & Preference Claude Opus 5.5 leads

Claude Opus 5.5: 78.7 (#3), MiniMax-M2.7: 59.1 (#107)

Writing & Preference benchmarks
Benchmark	Claude Opus 5.5	MiniMax-M2.7
LMArena Text	1518	1404
LMArena Creative Writing	1538	1354
LMArena Multi-Turn	1520	1413
EQ-Bench Creative Writing	2050	—

Frequently asked questions

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

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: 71.4 versus 41.4 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?

16 benchmarks have published results for both models. Claude Opus 5.5 has 35 scored results on Noometry and MiniMax-M2.7 has 30.