Claude Opus 4.1 vs MiniMax M2.5

Claude Opus 4.1 and MiniMax M2.5 tie on the Artificial Analysis Intelligence Index at 22.8, and MiniMax M2.5 costs 62.5x less per output token ($1.20 vs $75.00 per million). Updated October 22, 2026; 47 benchmarks have a result for both.

Replace Claude Opus 4.1 Replace MiniMax M2.5

Claude Opus 4.1Anthropic

Coding: No data
Overall: 50.2
Output $/M: $75.00

MiniMax M2.5MiniMax

Coding: 37.2
Overall: 37.3
Output $/M: $1.20

vs boards won of 47 shared, 1 tied

Claude Opus 4.1 or MiniMax M2.5: which to pick

Only MiniMax M2.5 has a coding score, 37.2 on the Vibe Coding Index; Claude Opus 4.1 has none, so the two cannot be ranked on coding.

Pick Claude Opus 4.1 for work measured by LMArena WebDev or LMArena Text: coding, where it leads.

Model AClaude Opus 4.1AnthropicNot benchmarked1 independent benchmarkNo cost per solved task Model BMiniMax M2.5MiniMax37.2/1003 independent benchmarks$0.62 per solved task

472924

Shared results: 47
Claude Opus 4.1 only: 29
MiniMax M2.5 only: 24
Like-for-like categories: 7 of 9

Only benchmarks that tested both models count toward a pick; a result only one model has is shown but not compared.

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.

Coding
Vibe Coding Index, six public coding benchmarks
No call
Only MiniMax M2.5 has a coding score, so no call is made.
One side not measured
Intelligence
AA Intelligence Index
No call
Tied at 22.8.
Same board, both measured
Reasoning
GPQA Diamond
MiniMax M2.5
MiniMax M2.5 leads, 82.1% against 76.3%.
Same board, both measured
Math
AIME
MiniMax M2.5
MiniMax M2.5 leads, 88.8% against 78.2%.
Same board, both measured
Knowledge
MMLU Pro
Claude Opus 4.1
Claude Opus 4.1 leads, 87.9% against 80.1%.
Same board, both measured
Web design
Design Arena: websites
MiniMax M2.5
MiniMax M2.5 leads, 1222 against 1176.
Same board, both measured
Long documents
Listed context window
MiniMax M2.5
MiniMax M2.5 takes 205K tokens against 200K.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
MiniMax M2.5
Claude Opus 4.1 $0.052, MiniMax M2.5 $0.0009 per turn.
List prices
Cost per solved task
One SWE-bench Verified task, solved
No call
Only MiniMax M2.5 has the number, $0.62.
Directional only

At a glance

Coding index: Claude Opus 4.1 not benchmarked, MiniMax M2.5 37.2 from 3 benchmarks.
Widest category: General, 13.7 points apart on average over 17 shared benchmarks.
Widest single gap: LMArena Text: Japanese: Claude Opus 4.1 1377 against MiniMax M2.5 1171, 34.4 points apart on a 0 to 100 scale.
Output price: Claude Opus 4.1 $75.00 against MiniMax M2.5 $1.20 per million output tokens, 62.5x apart.
Context window: Claude Opus 4.1 takes 200K tokens, MiniMax M2.5 205K.

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
Category	Claude Opus 4.1	MiniMax M2.5	Ties
Coding	3	3
Intelligence	0	1	1 tie
Reasoning	3	1
Math	2	1
Knowledge	8	0
Web design	1	6
General	17	0
All shared boards	34	12	1 tie

CodingLike-for-likeSix of these boards feed the Vibe Coding Index33

Coding benchmarks for Claude Opus 4.1 and MiniMax M2.5
Benchmark	Claude Opus 4.1	MiniMax M2.5	Leader
SWE-bench Verified	Not measured	75.8%	Only MiniMax M2.5 measured
SWE-bench Multilingual	Not measured	68.3%	Only MiniMax M2.5 measured
LMArena WebDev	1390	1386	Claude Opus 4.1
LiveCodeBench (Vals AI)	66.5%	79.2%	MiniMax M2.5
SWE-bench Verified (Vals AI)	Not measured	74.2%	Only MiniMax M2.5 measured
Vibe Code Bench (Vals AI)	Not measured	14.8%	Only MiniMax M2.5 measured
Terminal-Bench Hard (Artificial Analysis run)	Not measured	34.8%	Only MiniMax M2.5 measured
Terminal-Bench	38.0%	42.7%	MiniMax M2.5
WeirdML	45.9%	Not measured	Only Claude Opus 4.1 measured
Cybench	42.0%	Not measured	Only Claude Opus 4.1 measured
ALE-Bench	Not measured	618.2	Only MiniMax M2.5 measured
LMArena Text: coding	1479	1380	Claude Opus 4.1
LMArena Text: software and IT	1456	1383	Claude Opus 4.1
LMArena WebDev: React	Not measured	1374	Only MiniMax M2.5 measured
LMArena WebDev: HTML	1399	1414	MiniMax M2.5
SciCode	4.6%	Not measured	Only Claude Opus 4.1 measured
SWE Atlas: Codebase QnA	Not measured	10.3%	Only MiniMax M2.5 measured
SWE Atlas: Refactoring	Not measured	19.5%	Only MiniMax M2.5 measured
SWE Atlas: Test Writing	Not measured	18.6%	Only MiniMax M2.5 measured
Neither model has a result on the other 24 boards here

IntelligenceLike-for-likePublic boards, shown as published, kept out of the index01

Intelligence benchmarks for Claude Opus 4.1 and MiniMax M2.5
Benchmark	Claude Opus 4.1	MiniMax M2.5	Leader
AA Intelligence Index	22.8	22.8	Tie
Epoch Capabilities Index	144.1	146.6	MiniMax M2.5

Agentic workDirectional onlyPublic boards, shown as published, kept out of the index5 boards, none shared

Agentic work benchmarks for Claude Opus 4.1 and MiniMax M2.5
Benchmark	Claude Opus 4.1	MiniMax M2.5	Leader
τ²-Bench Telecom	Not measured	95.3%	Only MiniMax M2.5 measured
METR time horizons	66.8%	Not measured	Only Claude Opus 4.1 measured
GDPval	43.6%	Not measured	Only Claude Opus 4.1 measured
DeepResearch Bench	48.3%	Not measured	Only Claude Opus 4.1 measured
Vending-Bench 2	Not measured	-$23	Only MiniMax M2.5 measured
Neither model has a result on the other 37 boards here

ReasoningLike-for-likePublic boards, shown as published, kept out of the index31

Reasoning benchmarks for Claude Opus 4.1 and MiniMax M2.5
Benchmark	Claude Opus 4.1	MiniMax M2.5	Leader
GPQA Diamond	76.3%	82.1%	MiniMax M2.5
MMMU Pro (Vals AI)	77.5%	Not measured	Only Claude Opus 4.1 measured
GPQA Diamond (Artificial Analysis run)	Not measured	84.8%	Only MiniMax M2.5 measured
Humanity's Last Exam (Artificial Analysis run)	Not measured	20.5%	Only MiniMax M2.5 measured
GPQA Diamond (Epoch AI run)	77.3%	Not measured	Only Claude Opus 4.1 measured
ARC-AGI	Not measured	63.7%	Only MiniMax M2.5 measured
ARC-AGI-2	Not measured	4.9%	Only MiniMax M2.5 measured
SimpleBench	60.0%	Not measured	Only Claude Opus 4.1 measured
Mystery game puzzles	21.0%	Not measured	Only Claude Opus 4.1 measured
EBR-bench	7.9%	Not measured	Only Claude Opus 4.1 measured
VPCT	35.0%	Not measured	Only Claude Opus 4.1 measured
LMArena Text: hard prompts	1442	1372	Claude Opus 4.1
LMArena Text: expert	1438	1378	Claude Opus 4.1
LMArena Text: hard prompts in English	1451	1384	Claude Opus 4.1
Kagi LLM Benchmark	Not measured	55.2%	Only MiniMax M2.5 measured
Neither model has a result on the other 8 boards here

MathLike-for-likePublic boards, shown as published, kept out of the index21

Math benchmarks for Claude Opus 4.1 and MiniMax M2.5
Benchmark	Claude Opus 4.1	MiniMax M2.5	Leader
AIME	78.2%	88.8%	MiniMax M2.5
MATH 500 (Vals AI)	95.4%	Not measured	Only Claude Opus 4.1 measured
MGSM (Vals AI)	94.4%	Not measured	Only Claude Opus 4.1 measured
OTIS Mock AIME	68.9%	Not measured	Only Claude Opus 4.1 measured
FrontierMath, tiers 1 to 3	12.6%	Not measured	Only Claude Opus 4.1 measured
FrontierMath, tier 4	2.4%	Not measured	Only Claude Opus 4.1 measured
ProofBench	Not measured	4.0%	Only MiniMax M2.5 measured
LMArena Text: math	1431	1378	Claude Opus 4.1
LMArena Text: mathematical work	1434	1378	Claude Opus 4.1
Neither model has a result on the other 5 boards here

KnowledgeLike-for-likePublic boards, shown as published, kept out of the index80

Knowledge benchmarks for Claude Opus 4.1 and MiniMax M2.5
Benchmark	Claude Opus 4.1	MiniMax M2.5	Leader
MMLU Pro	87.9%	80.1%	Claude Opus 4.1
LegalBench (Vals AI)	83.5%	80.0%	Claude Opus 4.1
CaseLaw (Vals AI)	Not measured	53.5%	Only MiniMax M2.5 measured
CorpFin (Vals AI)	Not measured	59.6%	Only MiniMax M2.5 measured
TaxEval (Vals AI)	73.7%	68.2%	Claude Opus 4.1
MortgageTax (Vals AI)	61.1%	Not measured	Only Claude Opus 4.1 measured
MedQA (Vals AI)	93.6%	92.5%	Claude Opus 4.1
MedCode (Vals AI)	47.2%	Not measured	Only Claude Opus 4.1 measured
LMArena Text: science	1422	1369	Claude Opus 4.1
LMArena Text: medicine and healthcare	1416	1357	Claude Opus 4.1
LMArena Text: legal and government	1421	1366	Claude Opus 4.1
LMArena Text: business and finance	1406	1356	Claude Opus 4.1
FACTS Benchmark Suite	40.4%	Not measured	Only Claude Opus 4.1 measured
PRBench Finance	35.2%	Not measured	Only Claude Opus 4.1 measured
PRBench Legal	34.0%	Not measured	Only Claude Opus 4.1 measured
Neither model has a result on the other 5 boards here

Web designLike-for-likePublic boards, shown as published, kept out of the index16

Web design benchmarks for Claude Opus 4.1 and MiniMax M2.5
Benchmark	Claude Opus 4.1	MiniMax M2.5	Leader
Design Arena: websites	1176	1222	MiniMax M2.5
Design Arena: UI components	1162	1170	MiniMax M2.5
Design Arena: game dev	1171	1176	MiniMax M2.5
Design Arena: data viz	1166	1172	MiniMax M2.5
Design Arena: 3D	1152	1170	MiniMax M2.5
Design Arena: all code categories	1170	1207	MiniMax M2.5
Design Arena: SVG	1151	1150	Claude Opus 4.1
Design Arena: ASCII art	1167	Not measured	Only Claude Opus 4.1 measured
Neither model has a result on the other 1 board here

GeneralLike-for-likePublic boards, shown as published, kept out of the index170

General benchmarks for Claude Opus 4.1 and MiniMax M2.5
Benchmark	Claude Opus 4.1	MiniMax M2.5	Leader
SAGE (Vals AI)	31.4%	Not measured	Only Claude Opus 4.1 measured
MedScribe (Vals AI)	73.9%	Not measured	Only Claude Opus 4.1 measured
IFBench	Not measured	71.6%	Only MiniMax M2.5 measured
Long context reasoning (AA-LCR)	Not measured	73.3%	Only MiniMax M2.5 measured
DTBench	80.0%	Not measured	Only Claude Opus 4.1 measured
LMCA	37.1%	Not measured	Only Claude Opus 4.1 measured
Creative writing (Lech Mazur)	84.7%	Not measured	Only Claude Opus 4.1 measured
CL-bench	Not measured	11.4%	Only MiniMax M2.5 measured
CL-bench Life	Not measured	6.3%	Only MiniMax M2.5 measured
LMArena Text	1419	1359	Claude Opus 4.1
LMArena Text: instruction following	1435	1353	Claude Opus 4.1
LMArena Text: creative writing	1412	1331	Claude Opus 4.1
LMArena Text: English	1433	1380	Claude Opus 4.1
LMArena Text: non-English	1405	1338	Claude Opus 4.1
LMArena Text: Chinese	1427	1393	Claude Opus 4.1
LMArena Text: German	1413	1361	Claude Opus 4.1
LMArena Text: Japanese	1377	1171	Claude Opus 4.1
LMArena Text: Korean	1381	1233	Claude Opus 4.1
LMArena Text: French	1433	1363	Claude Opus 4.1
LMArena Text: Spanish	1448	1353	Claude Opus 4.1
LMArena Text: Russian	1422	1359	Claude Opus 4.1
LMArena Text: Polish	1413	1334	Claude Opus 4.1
LMArena Text: multi-turn	1444	1364	Claude Opus 4.1
LMArena Text: longer queries	1455	1366	Claude Opus 4.1
LMArena Text: writing and language	1418	1345	Claude Opus 4.1
LMArena Text: entertainment and media	1398	1329	Claude Opus 4.1
MultiChallenge	57.2%	Not measured	Only Claude Opus 4.1 measured
Neither model has a result on the other 21 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 M2.5
Benchmark	Claude Opus 4.1	MiniMax M2.5	Leader
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 M2.5$0.0009Fits in one request

MiniMax M2.5 costs less

Repository review

50K input + 3K output tokens

Claude Opus 4.1$0.975Fits in one request

MiniMax M2.5$0.019Fits in one request

MiniMax M2.5 costs less

Agent loop

200K input + 10K output tokens

Claude Opus 4.1$3.75Exceeds the context window

MiniMax M2.5$0.072Exceeds the context window

MiniMax M2.5 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 M2.5
Specification	Anthropic Claude Opus 4.1	MiniMax M2.5
Maker	Anthropic	MiniMax
Weights	No public weights listed	Open weights
Released	August 5, 2025	February 12, 2026
Context window	200K	205K
Input $/Mtok	$15.00	$0.30
Output $/Mtok	$75.00	$1.20
Coding index	Not benchmarked	37.2
Independent measurements behind it	1	3
Cost per solved task	Not computable	$0.62
Source	OpenRouter listing	OpenRouter listing

Questions

Is Claude Opus 4.1 better than MiniMax M2.5 for coding?

Only MiniMax M2.5 has a coding score, 37.2 on the Vibe Coding Index; Claude Opus 4.1 has none, so the two cannot be ranked on coding. Pick Claude Opus 4.1 for work measured by LMArena WebDev or LMArena Text: coding, where it leads.

Which is cheaper, Claude Opus 4.1 or MiniMax M2.5?

Claude Opus 4.1 costs $15.00 per million input tokens and $75.00 per million output tokens; MiniMax M2.5 costs $0.30 and $1.20. Cost per solved task is known for MiniMax M2.5 only.

Which has the bigger context window, Claude Opus 4.1 or MiniMax M2.5?

MiniMax M2.5, with 205K tokens against 200K.

How many benchmarks is the Claude Opus 4.1 vs MiniMax M2.5 comparison based on?

47 benchmarks have a result for both models as of October 22, 2026. Claude Opus 4.1's coding index rests on 1 independent benchmark and MiniMax M2.5's on 3. Where only one model has a result, the page says so instead of naming a winner.

Claude Opus 4.1 or MiniMax M2.5: which to pick

Which one for your work

Coding

Intelligence

Reasoning

Math

Knowledge

Web design

Long documents

Everyday cost

Cost per solved task

At a glance

Benchmark by benchmark

What each workload costs

Chat turn

Repository review

Agent loop

Specification differences

Questions

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