Noometry

Model comparison

Claude Opus 4.5 vs MiniMax-M3

Claude Opus 4.5 is the stronger model overall, scoring 50.5 to 43.8 on the Noometry Index. MiniMax-M3 costs 19× less per token, which makes it the better buy when Claude Opus 4.5's lead doesn't matter for your workload.

Last verified . 32 shared benchmarks.

Claude Opus 4.5 Anthropic

50.5

Rank #47 Confirmed

MiniMax-M3 MiniMax

43.8

Rank #85 Confirmed

Summary

  • They share 32 benchmarks with published results for both. Claude Opus 4.5 scores higher in 7 categories and MiniMax-M3 in 3 categories; 10 gaps are clear of the uncertainty.
  • The widest gap is in agentic & tool use, where Claude Opus 4.5 leads 47.3 to 22.6.
  • The biggest single-benchmark swing is ProofBench: 36% for Claude Opus 4.5 and 18% for MiniMax-M3.
  • MiniMax-M3 is cheaper at $0.30 / $1.20 per million input/output tokens, against $5 / $25 for Claude Opus 4.5.
  • MiniMax-M3 accepts more context: 1M tokens versus 200K.
  • MiniMax-M3 has downloadable open weights; the other is API-only.

Side by side

Claude Opus 4.5MiniMax-M3
ProviderAnthropicMiniMax
Noometry Index50.543.8
Released2025-11-012026-06-01
WeightsProprietaryOpen
Context window200K1M
Max output64K512K
Input $ / M tokens$5$0.30
Output $ / M tokens$25$1.20
Results tracked6941

Sponsored placements are available on pages like this one. Advertise on Noometry

Category by category

Coding Claude Opus 4.5 leads

Claude Opus 4.5: 54.8 (#27), MiniMax-M3: 41.8 (#118)

BenchmarkClaude Opus 4.5MiniMax-M3
LMArena WebDev14941482
LMArena Coding15041469
ALE-Bench1,025640.02
SWE-bench Verified76.7%—
FrontierCode—14.7%
SWE-bench Verified (bash only)76.8%—
SWE-bench Multilingual70.7%—
SciCode—47.1%
GSO26.5%—
WeirdML63.7%—
AlgoTune1.77—

Agentic & Tool Use Claude Opus 4.5 leads

Claude Opus 4.5: 47.3 (#12), MiniMax-M3: 22.6 (#130)

BenchmarkClaude Opus 4.5MiniMax-M3
Vending-Bench 24,9672,158
Terminal-Bench63.1%—
APEX-Agents—37.7%
Berkeley Function Calling Leaderboard77.5%—
OSWorld 2.0—4.6%
GDPval45.5%—
Remote Labor Index3.8%—
τ²-bench Airline84%—
τ²-bench Banking24.7%—
τ²-bench Retail79.6%—
τ²-bench Telecom92.3%—
Cybench82%—
DeepResearch Bench54.8%—
OSWorld66.3%—
BALROG43.5%—
GBAEval—0.9%
LMArena Search1180—
METR Time Horizons75%—

Reasoning Claude Opus 4.5 leads

Claude Opus 4.5: 42.6 (#51), MiniMax-M3: 30.1 (#87)

BenchmarkClaude Opus 4.5MiniMax-M3
SimpleBench62%45.8%
NYT Connections (extended)52.5%65.1%
Chess Puzzles12%14%
LMArena Hard Prompts14761447
Mystery Game Puzzles22%8%
DTBench89.9%78.9%
LMCA44.5%33.7%
Epoch Capabilities Index150.09146.95
ForecastBench60.761.4
ARC-AGI-237.6%—
Kagi LLM Benchmark80.2%—
ARC-AGI-180%—
CritPt—3.7%
EnigmaEval11.9%—
EBR-Bench14.3%—
Surface Evolver Bench—55%

Math MiniMax-M3 leads

Claude Opus 4.5: 38.6 (#132), MiniMax-M3: 40.0 (#95)

BenchmarkClaude Opus 4.5MiniMax-M3
OTIS Mock AIME 2024-202586.1%71.1%
ProofBench36%18%
LMArena Math14631429
FrontierMath (Tiers 1-3)34.4%—
FrontierMath Tier 44.9%—
FrontierMath (Feb 2025 set)20.7%—
FrontierMath Tier 4 (v1)4.2%—

Knowledge MiniMax-M3 leads

Claude Opus 4.5: 56.5 (#44), MiniMax-M3: 58.4 (#35)

BenchmarkClaude Opus 4.5MiniMax-M3
GPQA Diamond86%90.9%
LMArena Expert14871461
Humanity's Last Exam25.2%—
SimpleQA Verified45.7%—
Vectara Hallucination Rate10.9%—

Multimodal MiniMax-M3 leads

Claude Opus 4.5: 31.4 (#107), MiniMax-M3: 40.2 (#51)

BenchmarkClaude Opus 4.5MiniMax-M3
LMArena Document14621435
LMArena Vision—1253
GeoBench75%—
VPCT40%—
Furniture Assembly28.3%—

Multilingual Claude Opus 4.5 leads

Claude Opus 4.5: 54.3 (#47), MiniMax-M3: 53.0 (#75)

BenchmarkClaude Opus 4.5MiniMax-M3
LMArena Non-English14381420
LMArena Chinese14701463
LMArena French14711447
LMArena German14491426
LMArena Japanese14161381
LMArena Korean14241372
LMArena Russian14471428
LMArena Spanish14581432

Instruction Following Claude Opus 4.5 leads

Claude Opus 4.5: 77.5 (#19), MiniMax-M3: 75.5 (#62)

BenchmarkClaude Opus 4.5MiniMax-M3
LMArena Instruction Following14781433

Long Context Claude Opus 4.5 leads

Claude Opus 4.5: 46.5 (#22), MiniMax-M3: 44.2 (#72)

BenchmarkClaude Opus 4.5MiniMax-M3
LMArena Longer Query14801445
CL-bench21.1%—

Writing & Preference Claude Opus 4.5 leads

Claude Opus 4.5: 68.1 (#28), MiniMax-M3: 62.1 (#83)

BenchmarkClaude Opus 4.5MiniMax-M3
LMArena Text14511433
LMArena Creative Writing14451404
LMArena Multi-Turn14661442
EQ-Bench Creative Writing1687—
EQ-Bench 4—1150

Frequently asked questions

Is Claude Opus 4.5 better than MiniMax-M3?

Claude Opus 4.5 is the stronger model overall, scoring 50.5 to 43.8 on the Noometry Index. MiniMax-M3 costs 19× less per token, which makes it the better buy when Claude Opus 4.5's lead doesn't matter for your workload.

Which is cheaper, Claude Opus 4.5 or MiniMax-M3?

MiniMax-M3 is cheaper. It lists at $0.30 per million input tokens and $1.20 per million output tokens; Claude Opus 4.5 lists at $5 and $25.

Is Claude Opus 4.5 or MiniMax-M3 better for coding?

Claude Opus 4.5 scores higher on coding benchmarks: 54.8 versus 41.8 in the Noometry coding category.

Which has the bigger context window?

MiniMax-M3 does, with 1M tokens against 200K.

How many benchmarks do Claude Opus 4.5 and MiniMax-M3 share?

32 benchmarks have published results for both models. Claude Opus 4.5 has 69 scored results on Noometry and MiniMax-M3 has 41.

Related comparisons

Go deeper