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Claude Opus 4.1 vs MiniMax M3

Updated October 21, 2026. 56 benchmarks have a result for both. Coding is ranked on the Vibe Coding Index; every other board is shown as published.

Replace Claude Opus 4.1 Replace MiniMax M3
Claude Opus 4.1Anthropic
Coding
27.2
Overall
22.8
Output $/M
$75.00
16
MiniMax M3MiniMax
Coding
57.8
Overall
29.2
Output $/M
$1.20
40
vs boards won of 56 shared

Decision reading

Pick MiniMax M3 for coding: it scores 57.8 on the Vibe Coding Index against 27.2 for Claude Opus 4.1.

Pick Claude Opus 4.1 when what matters is LMArena Text: coding or SimpleBench, where it leads.

Model AClaude Opus 4.1Anthropic27.2/1001 independent benchmarkNo cost per solved taskModel BMiniMax M3MiniMax57.8/1002 independent benchmarks$0.56 per solved task
Shared results
56
Claude Opus 4.1 only
15
MiniMax M3 only
60
Like-for-like categories
7 of 9

Shared results can support a head-to-head reading. Results only one model has describe coverage, not superiority.

Which one for your work

Each card is decided by one number both models carry. Where only one has it, the card says so and makes no call.

At a glance

Coding index
Claude Opus 4.1 27.2 from 1 benchmark, MiniMax M3 57.8 from 2 benchmarks.
Widest category
Reasoning, 8.3 points apart on average over 8 shared benchmarks.
Widest single gap
SAGE (Vals AI): Claude Opus 4.1 31.4% against MiniMax M3 50.6%, 19.2 points apart on a 0 to 100 scale.
Output price
Claude Opus 4.1 $75.00 against MiniMax M3 $1.20 per million output tokens, 62.5x apart.
Context window
Claude Opus 4.1 takes 200K tokens, MiniMax M3 1.05M.

Benchmark by benchmark

First the score: boards each model leads, per category, where both have a result. Then every board, a category to a fold; bars are each result on a 0 to 100 scale, so compare the two in a row, not one row with another.

Boards won, where both have a result
CategoryClaude Opus 4.1BarsMiniMax M3Ties
Coding14
Intelligence02
Reasoning26
Math12
Knowledge36
Web design17
General813
All shared boards1640
CodingLike-for-likeFour of these boards feed the Vibe Coding Index14
Coding benchmarks for Claude Opus 4.1 and MiniMax M3
BenchmarkClaude Opus 4.1MiniMax M3Leader
LiveBench codingNot measured70.9%Only MiniMax M3 measured
LMArena WebDev13901482MiniMax M3
AA Coding IndexNot measured58.6Only MiniMax M3 measured
LiveCodeBench (Vals AI)66.5%82.2%MiniMax M3
SWE-bench Verified (Vals AI)Not measured75.0%Only MiniMax M3 measured
Terminal-Bench 4 (Vals AI)Not measured1.0%Only MiniMax M3 measured
Vibe Code Bench (Vals AI)Not measured47.6%Only MiniMax M3 measured
Code migration (Vals AI)Not measured19.9%Only MiniMax M3 measured
Terminal-Bench 2.1 (Vals AI)Not measured53.6%Only MiniMax M3 measured
SWE-bench Multimodal (Vals AI)Not measured33.3%Only MiniMax M3 measured
Vibe Code Bench 1-100 (Vals AI)Not measured9.2%Only MiniMax M3 measured
SkillsBench (Vals AI)Not measured51.5%Only MiniMax M3 measured
CyberBench (Vals AI)Not measured65.0%Only MiniMax M3 measured
SciCodeNot measured47.1%Only MiniMax M3 measured
Terminal-Bench Hard (Artificial Analysis run)Not measured42.4%Only MiniMax M3 measured
Terminal-Bench38.0%Not measuredOnly Claude Opus 4.1 measured
FrontierCodeNot measured14.7%Only MiniMax M3 measured
WeirdML45.9%Not measuredOnly Claude Opus 4.1 measured
Cybench42.0%Not measuredOnly Claude Opus 4.1 measured
ALE-BenchNot measured640.0Only MiniMax M3 measured
LMArena Text: coding14791470Claude Opus 4.1
LMArena Text: software and IT14561466MiniMax M3
LMArena WebDev: ReactNot measured1478Only MiniMax M3 measured
LMArena WebDev: HTML13991455MiniMax M3
LMArena WebDev: from an imageNot measured1470Only MiniMax M3 measured
Neither model has a result on the other 13 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index02
Intelligence benchmarks for Claude Opus 4.1 and MiniMax M3
BenchmarkClaude Opus 4.1MiniMax M3Leader
AA Intelligence Index22.829.2MiniMax M3
Epoch Capabilities Index144.1146.9MiniMax M3
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index23 boards, none shared
Agentic work benchmarks for Claude Opus 4.1 and MiniMax M3
BenchmarkClaude Opus 4.1MiniMax M3Leader
AA Agentic IndexNot measured29.5Only MiniMax M3 measured
Design Arena: agents building web appsNot measured1200Only MiniMax M3 measured
Design Arena: agents building full-stack appsNot measured1197Only MiniMax M3 measured
Design Arena: agents building mobile appsNot measured1169Only MiniMax M3 measured
Design Arena: agents building Android appsNot measured1164Only MiniMax M3 measured
Design Arena: agents building gamesNot measured1158Only MiniMax M3 measured
Design Arena: HTML slidesNot measured1180Only MiniMax M3 measured
Design Arena: PowerPoint slidesNot measured1205Only MiniMax M3 measured
Design Arena: spreadsheetsNot measured1021Only MiniMax M3 measured
LiveBench researchNot measured68.0%Only MiniMax M3 measured
LiveBench browserNot measured8.0%Only MiniMax M3 measured
LiveBench long agenticNot measured12.4%Only MiniMax M3 measured
Finance Agent (Vals AI)Not measured48.3%Only MiniMax M3 measured
Tax Agent Bench (Vals AI)Not measured20.6%Only MiniMax M3 measured
Legal Research Bench (Vals AI)Not measured29.8%Only MiniMax M3 measured
Excel Modeling Benchmark (Vals AI)Not measured47.8%Only MiniMax M3 measured
τ²-Bench TelecomNot measured88.9%Only MiniMax M3 measured
APEX-AgentsNot measured37.7%Only MiniMax M3 measured
METR time horizons66.8%Not measuredOnly Claude Opus 4.1 measured
GDPval43.6%Not measuredOnly Claude Opus 4.1 measured
OSWorld 2.0Not measured4.6%Only MiniMax M3 measured
DeepResearch Bench48.3%Not measuredOnly Claude Opus 4.1 measured
Vending-Bench 2Not measured$2,158Only MiniMax M3 measured
Neither model has a result on the other 16 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index26
Reasoning benchmarks for Claude Opus 4.1 and MiniMax M3
BenchmarkClaude Opus 4.1MiniMax M3Leader
GPQA Diamond76.3%92.7%MiniMax M3
LiveBench reasoningNot measured74.5%Only MiniMax M3 measured
MMMU Pro (Vals AI)77.5%81.2%MiniMax M3
GPQA Diamond (Artificial Analysis run)Not measured92.9%Only MiniMax M3 measured
Humanity's Last Exam (Artificial Analysis run)Not measured39.0%Only MiniMax M3 measured
GPQA Diamond (Epoch AI run)77.3%90.9%MiniMax M3
SimpleBench60.0%45.8%Claude Opus 4.1
Chess puzzlesNot measured13.0%Only MiniMax M3 measured
Mystery game puzzles21.0%8.0%Claude Opus 4.1
EBR-bench7.9%Not measuredOnly Claude Opus 4.1 measured
VPCT35.0%Not measuredOnly Claude Opus 4.1 measured
LMArena Text: hard prompts14421447MiniMax M3
LMArena Text: expert14381461MiniMax M3
LMArena Text: hard prompts in English14511455MiniMax M3
LMArena Vision: diagramsNot measured1266Only MiniMax M3 measured
LMArena Vision: homeworkNot measured1268Only MiniMax M3 measured
Neither model has a result on the other 5 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index12
Math benchmarks for Claude Opus 4.1 and MiniMax M3
BenchmarkClaude Opus 4.1MiniMax M3Leader
AIME78.2%Not measuredOnly Claude Opus 4.1 measured
MATH 500 (Vals AI)95.4%Not measuredOnly Claude Opus 4.1 measured
MGSM (Vals AI)94.4%Not measuredOnly Claude Opus 4.1 measured
OTIS Mock AIME68.9%71.1%MiniMax M3
FrontierMath, tiers 1 to 312.6%Not measuredOnly Claude Opus 4.1 measured
FrontierMath, tier 42.4%Not measuredOnly Claude Opus 4.1 measured
ProofBenchNot measured18.0%Only MiniMax M3 measured
LMArena Text: math14311429Claude Opus 4.1
LMArena Text: mathematical work14341448MiniMax M3
Neither model has a result on the other 4 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index36
Knowledge benchmarks for Claude Opus 4.1 and MiniMax M3
BenchmarkClaude Opus 4.1MiniMax M3Leader
MMLU Pro87.9%84.2%Claude Opus 4.1
LegalBench (Vals AI)83.5%85.4%MiniMax M3
CorpFin (Vals AI)Not measured68.1%Only MiniMax M3 measured
TaxEval (Vals AI)73.7%72.7%Claude Opus 4.1
MortgageTax (Vals AI)61.1%68.4%MiniMax M3
MedQA (Vals AI)93.6%Not measuredOnly Claude Opus 4.1 measured
MedCode (Vals AI)47.2%46.3%Claude Opus 4.1
LMArena Text: science14221452MiniMax M3
LMArena Text: medicine and healthcare14161441MiniMax M3
LMArena Text: legal and government14211437MiniMax M3
LMArena Text: business and finance14061434MiniMax M3
Neither model has a result on the other 6 boards here
Web designLike-for-likePublic boards, shown as published, kept out of the index17
Web design benchmarks for Claude Opus 4.1 and MiniMax M3
BenchmarkClaude Opus 4.1MiniMax M3Leader
Design Arena: websites11771257MiniMax M3
Design Arena: UI components11641246MiniMax M3
Design Arena: game dev11721210MiniMax M3
Design Arena: data viz11661235MiniMax M3
Design Arena: 3D11531209MiniMax M3
Design Arena: all code categories11711247MiniMax M3
Design Arena: SVG11521161MiniMax M3
Design Arena: ASCII art11671161Claude Opus 4.1
LiveBench designNot measured66.2%Only MiniMax M3 measured
GeneralLike-for-likePublic boards, shown as published, kept out of the index813
General benchmarks for Claude Opus 4.1 and MiniMax M3
BenchmarkClaude Opus 4.1MiniMax M3Leader
LiveBench data analysisNot measured76.2%Only MiniMax M3 measured
Public Benefits Bench (Vals AI)Not measured64.1%Only MiniMax M3 measured
SAGE (Vals AI)31.4%50.6%MiniMax M3
MedScribe (Vals AI)73.9%87.3%MiniMax M3
Vals Multimodal IndexNot measured60.0%Only MiniMax M3 measured
IFBenchNot measured82.9%Only MiniMax M3 measured
Long context reasoning (AA-LCR)Not measured83.0%Only MiniMax M3 measured
DTBench80.0%78.9%Claude Opus 4.1
LMCA37.1%33.7%Claude Opus 4.1
Creative writing (Lech Mazur)84.7%Not measuredOnly Claude Opus 4.1 measured
Surface Evolver BenchNot measured55.0%Only MiniMax M3 measured
LMArena Text14191433MiniMax M3
LMArena Text: instruction following14351433Claude Opus 4.1
LMArena Text: creative writing14121404Claude Opus 4.1
LMArena VisionNot measured1251Only MiniMax M3 measured
LMArena Text: English14331443MiniMax M3
LMArena Text: non-English14051420MiniMax M3
LMArena Text: Chinese14271466MiniMax M3
LMArena Text: German14131428MiniMax M3
LMArena Text: Japanese13771380MiniMax M3
LMArena Text: Korean13811373Claude Opus 4.1
LMArena Text: French14331444MiniMax M3
LMArena Text: Spanish14481433Claude Opus 4.1
LMArena Text: Russian14221426MiniMax M3
LMArena Text: Polish14131423MiniMax M3
LMArena Text: multi-turn14441443Claude Opus 4.1
LMArena Text: longer queries14551446Claude Opus 4.1
LMArena Text: writing and language14181419MiniMax M3
LMArena Text: entertainment and media13981403MiniMax M3
LMArena Vision: EnglishNot measured1263Only MiniMax M3 measured
LMArena Vision: ChineseNot measured1311Only MiniMax M3 measured
LMArena Vision: reading textNot measured1259Only MiniMax M3 measured
LMArena Vision: humorNot measured1235Only MiniMax M3 measured
LMArena Vision: recognizing thingsNot measured1197Only MiniMax M3 measured
LMArena Vision: creative writingNot measured1234Only MiniMax M3 measured
LMArena DocumentNot measured1435Only MiniMax M3 measured
Neither model has a result on the other 10 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for Claude Opus 4.1 and MiniMax M3
BenchmarkClaude Opus 4.1MiniMax M3Leader
Neither model has a result on 5 boards here

What each workload costs

Three fixed token mixes at each model's listed price, so per-token rates become a bill.

Chat turn

1K input + 500 output tokens

Claude Opus 4.1$0.052Fits in one request
MiniMax M3$0.0009Fits in one request

MiniMax M3 costs less

Repository review

50K input + 3K output tokens

Claude Opus 4.1$0.975Fits in one request
MiniMax M3$0.019Fits in one request

MiniMax M3 costs less

Agent loop

200K input + 10K output tokens

Claude Opus 4.1$3.75Exceeds the context window
MiniMax M3$0.072Fits in one request

MiniMax M3 costs less

Listed OpenRouter rates, without cache or batch discounts. A workload that does not fit a model's context window would need splitting.

Specification differences

The leading value in a row is marked; a row with a missing value names no leader. Our two rows are marked in red.

Specifications of Claude Opus 4.1 and MiniMax M3
SpecificationAnthropic Claude Opus 4.1MiniMax M3
MakerAnthropicMiniMax
WeightsNo public weights listedOpen weights
ReleasedAugust 5, 2025May 31, 2026
Context window200K1.05M
Input $/Mtok$15.00$0.30
Output $/Mtok$75.00$1.20
Coding index27.257.8
Independent measurements behind it12
Cost per solved taskNot computable$0.56
SourceOpenRouter listingOpenRouter listing

Questions

Is Claude Opus 4.1 better than MiniMax M3 for coding?

Pick MiniMax M3 for coding: it scores 57.8 on the Vibe Coding Index against 27.2 for Claude Opus 4.1. Pick Claude Opus 4.1 when what matters is LMArena Text: coding or SimpleBench, where it leads.

Which is cheaper, Claude Opus 4.1 or MiniMax M3?

Claude Opus 4.1 costs $15.00 per million input tokens and $75.00 per million output tokens; MiniMax M3 costs $0.30 and $1.20. Cost per solved task is known for MiniMax M3 only.

Which has the bigger context window, Claude Opus 4.1 or MiniMax M3?

MiniMax M3, with 1.05M tokens against 200K.

How many benchmarks is the Claude Opus 4.1 vs MiniMax M3 comparison based on?

56 benchmarks have a result for both models as of October 21, 2026. Claude Opus 4.1's coding index rests on 1 independent benchmark and MiniMax M3's on 2. Where only one model has a result, the page says so instead of naming a winner.

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