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Claude Opus 4.1 vs MiMo-V2.5

Claude Opus 4.1 leads MiMo-V2.5 on the Artificial Analysis Intelligence Index, 22.8 to 21.8, and MiMo-V2.5 costs 223.2x less per output token ($0.336 vs $75.00 per million). Updated October 22, 2026; 49 benchmarks have a result for both.

Replace Claude Opus 4.1 Replace MiMo-V2.5
Claude Opus 4.1Anthropic
Coding
No data
Overall
50.2
Output $/M
$75.00
19
MiMo-V2.5Xiaomi
Coding
50.0
Overall
50.7
Output $/M
$0.336
30
vs boards won of 49 shared

Claude Opus 4.1 or MiMo-V2.5: which to pick

Only MiMo-V2.5 has a coding score, 50.0 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 Text: coding or AA Intelligence Index, where it leads.

Model AClaude Opus 4.1AnthropicNot benchmarked1 independent benchmarkNo cost per solved taskModel BMiMo-V2.5Xiaomi50.0/1003 independent benchmarks$0.01 per solved task
Shared results
49
Claude Opus 4.1 only
24
MiMo-V2.5 only
31
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.

At a glance

Coding index
Claude Opus 4.1 not benchmarked, MiMo-V2.5 50.0 from 3 benchmarks.
Widest category
Web design, 8.6 points apart on average over 8 shared benchmarks.
Widest single gap
MedCode (Vals AI): Claude Opus 4.1 47.2% against MiMo-V2.5 31.9%, 15.3 points apart on a 0 to 100 scale.
Output price
Claude Opus 4.1 $75.00 against MiMo-V2.5 $0.336 per million output tokens, 223.2x apart.
Context window
Claude Opus 4.1 takes 200K tokens, MiMo-V2.5 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 4.1BarsMiMo-V2.5Ties
Coding14
Intelligence10
Reasoning05
Math02
Knowledge54
Web design17
General118
All shared boards1930
CodingLike-for-likeSix of these boards feed the Vibe Coding Index14
Coding benchmarks for Claude Opus 4.1 and MiMo-V2.5
BenchmarkClaude Opus 4.1MiMo-V2.5Leader
LMArena WebDev13901438MiMo-V2.5
AA Coding IndexNot measured56.8Only MiMo-V2.5 measured
LiveCodeBench (Vals AI)66.5%81.5%MiMo-V2.5
SWE-bench Verified (Vals AI)Not measured71.0%Only MiMo-V2.5 measured
Vibe Code Bench (Vals AI)Not measured42.2%Only MiMo-V2.5 measured
Code migration (Vals AI)Not measured14.2%Only MiMo-V2.5 measured
Terminal-Bench 2.1 (Vals AI)Not measured60.7%Only MiMo-V2.5 measured
SciCodeNot measured43.9%Only MiMo-V2.5 measured
Terminal-Bench Hard (Artificial Analysis run)Not measured41.7%Only MiMo-V2.5 measured
Terminal-Bench38.0%Not measuredOnly Claude Opus 4.1 measured
WeirdML45.9%Not measuredOnly Claude Opus 4.1 measured
Cybench42.0%Not measuredOnly Claude Opus 4.1 measured
ALE-BenchNot measured514.0Only MiMo-V2.5 measured
LMArena Text: coding14791469Claude Opus 4.1
LMArena Text: software and IT14561463MiMo-V2.5
LMArena WebDev: ReactNot measured1425Only MiMo-V2.5 measured
LMArena WebDev: HTML13991429MiMo-V2.5
SciCode4.6%Not measuredOnly Claude Opus 4.1 measured
Neither model has a result on the other 21 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index10
Intelligence benchmarks for Claude Opus 4.1 and MiMo-V2.5
BenchmarkClaude Opus 4.1MiMo-V2.5Leader
AA Intelligence Index22.821.8Claude Opus 4.1
Epoch Capabilities Index144.1Not measuredOnly Claude Opus 4.1 measured
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index9 boards, none shared
Agentic work benchmarks for Claude Opus 4.1 and MiMo-V2.5
BenchmarkClaude Opus 4.1MiMo-V2.5Leader
AA Agentic IndexNot measured15.8Only MiMo-V2.5 measured
Finance Agent (Vals AI)Not measured36.7%Only MiMo-V2.5 measured
Tax Agent Bench (Vals AI)Not measured7.8%Only MiMo-V2.5 measured
Legal Research Bench (Vals AI)Not measured9.1%Only MiMo-V2.5 measured
Excel Modeling Benchmark (Vals AI)Not measured55.1%Only MiMo-V2.5 measured
τ²-Bench TelecomNot measured90.6%Only MiMo-V2.5 measured
METR time horizons66.8%Not measuredOnly Claude Opus 4.1 measured
GDPval43.6%Not measuredOnly Claude Opus 4.1 measured
DeepResearch Bench48.3%Not measuredOnly Claude Opus 4.1 measured
Neither model has a result on the other 32 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index05
Reasoning benchmarks for Claude Opus 4.1 and MiMo-V2.5
BenchmarkClaude Opus 4.1MiMo-V2.5Leader
GPQA Diamond76.3%81.6%MiMo-V2.5
MMMU Pro (Vals AI)77.5%80.0%MiMo-V2.5
GPQA Diamond (Artificial Analysis run)Not measured84.9%Only MiMo-V2.5 measured
Humanity's Last Exam (Artificial Analysis run)Not measured27.2%Only MiMo-V2.5 measured
GPQA Diamond (Epoch AI run)77.3%Not measuredOnly Claude Opus 4.1 measured
SimpleBench60.0%Not measuredOnly Claude Opus 4.1 measured
Mystery game puzzles21.0%Not measuredOnly Claude Opus 4.1 measured
EBR-bench7.9%Not measuredOnly Claude Opus 4.1 measured
VPCT35.0%Not measuredOnly Claude Opus 4.1 measured
LMArena Text: hard prompts14421450MiMo-V2.5
LMArena Text: expert14381459MiMo-V2.5
LMArena Text: hard prompts in English14511461MiMo-V2.5
LMArena Vision: diagramsNot measured1269Only MiMo-V2.5 measured
LMArena Vision: homeworkNot measured1262Only MiMo-V2.5 measured
Neither model has a result on the other 8 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index02
Math benchmarks for Claude Opus 4.1 and MiMo-V2.5
BenchmarkClaude Opus 4.1MiMo-V2.5Leader
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%Not measuredOnly Claude Opus 4.1 measured
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 measured16.0%Only MiMo-V2.5 measured
LMArena Text: math14311436MiMo-V2.5
LMArena Text: mathematical work14341451MiMo-V2.5
Neither model has a result on the other 4 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index54
Knowledge benchmarks for Claude Opus 4.1 and MiMo-V2.5
BenchmarkClaude Opus 4.1MiMo-V2.5Leader
MMLU Pro87.9%82.9%Claude Opus 4.1
LegalBench (Vals AI)83.5%78.9%Claude Opus 4.1
CorpFin (Vals AI)Not measured59.9%Only MiMo-V2.5 measured
TaxEval (Vals AI)73.7%71.8%Claude Opus 4.1
MortgageTax (Vals AI)61.1%59.3%Claude Opus 4.1
MedQA (Vals AI)93.6%Not measuredOnly Claude Opus 4.1 measured
MedCode (Vals AI)47.2%31.9%Claude Opus 4.1
LMArena Text: science14221440MiMo-V2.5
LMArena Text: medicine and healthcare14161432MiMo-V2.5
LMArena Text: legal and government14211425MiMo-V2.5
LMArena Text: business and finance14061432MiMo-V2.5
FACTS Benchmark Suite40.4%Not measuredOnly Claude Opus 4.1 measured
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 MiMo-V2.5
BenchmarkClaude Opus 4.1MiMo-V2.5Leader
Design Arena: websites11761265MiMo-V2.5
Design Arena: UI components11621255MiMo-V2.5
Design Arena: game dev11711249MiMo-V2.5
Design Arena: data viz11661250MiMo-V2.5
Design Arena: 3D11521215MiMo-V2.5
Design Arena: all code categories11701260MiMo-V2.5
Design Arena: SVG11521179MiMo-V2.5
Design Arena: ASCII art11671140Claude Opus 4.1
Neither model has a result on the other 1 board here
GeneralLike-for-likePublic boards, shown as published, kept out of the index118
General benchmarks for Claude Opus 4.1 and MiMo-V2.5
BenchmarkClaude Opus 4.1MiMo-V2.5Leader
SAGE (Vals AI)31.4%43.3%MiMo-V2.5
MedScribe (Vals AI)73.9%72.2%Claude Opus 4.1
Vals Multimodal IndexNot measured52.8%Only MiMo-V2.5 measured
IFBenchNot measured67.1%Only MiMo-V2.5 measured
Long context reasoning (AA-LCR)Not measured73.0%Only MiMo-V2.5 measured
DTBench80.0%Not measuredOnly Claude Opus 4.1 measured
LMCA37.1%Not measuredOnly Claude Opus 4.1 measured
Creative writing (Lech Mazur)84.7%Not measuredOnly Claude Opus 4.1 measured
LMArena Text14191428MiMo-V2.5
LMArena Text: instruction following14351435Claude Opus 4.1
LMArena Text: creative writing14121393Claude Opus 4.1
LMArena VisionNot measured1247Only MiMo-V2.5 measured
LMArena Text: English14331447MiMo-V2.5
LMArena Text: non-English14051405Claude Opus 4.1
LMArena Text: Chinese14271469MiMo-V2.5
LMArena Text: German14131421MiMo-V2.5
LMArena Text: Japanese13771306Claude Opus 4.1
LMArena Text: Korean13811361Claude Opus 4.1
LMArena Text: French14331448MiMo-V2.5
LMArena Text: Spanish14481414Claude Opus 4.1
LMArena Text: Russian14221396Claude Opus 4.1
LMArena Text: Polish14131413Claude Opus 4.1
LMArena Text: multi-turn14441445MiMo-V2.5
LMArena Text: longer queries14551445Claude Opus 4.1
LMArena Text: writing and language14181409Claude Opus 4.1
LMArena Text: entertainment and media13981399MiMo-V2.5
LMArena Vision: EnglishNot measured1259Only MiMo-V2.5 measured
LMArena Vision: ChineseNot measured1326Only MiMo-V2.5 measured
LMArena Vision: reading textNot measured1256Only MiMo-V2.5 measured
LMArena Vision: humorNot measured1226Only MiMo-V2.5 measured
LMArena Vision: recognizing thingsNot measured1189Only MiMo-V2.5 measured
LMArena Vision: creative writingNot measured1230Only MiMo-V2.5 measured
Neither model has a result on the other 14 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 MiMo-V2.5
BenchmarkClaude Opus 4.1MiMo-V2.5Leader
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
MiMo-V2.5$0.0003Fits in one request

MiMo-V2.5 costs less

Repository review

50K input + 3K output tokens

Claude Opus 4.1$0.975Fits in one request
MiMo-V2.5$0.0094Fits in one request

MiMo-V2.5 costs less

Agent loop

200K input + 10K output tokens

Claude Opus 4.1$3.75Exceeds the context window
MiMo-V2.5$0.037Fits in one request

MiMo-V2.5 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 MiMo-V2.5
SpecificationAnthropic Claude Opus 4.1Xiaomi MiMo-V2.5
MakerAnthropicXiaomi
WeightsNo public weights listedOpen weights
ReleasedAugust 5, 2025April 22, 2026
Context window200K1.05M
Input $/Mtok$15.00$0.168
Output $/Mtok$75.00$0.336
Coding indexNot benchmarked50.0
Independent measurements behind it13
Cost per solved taskNot computable$0.01
SourceOpenRouter listingOpenRouter listing

Questions

Is Claude Opus 4.1 better than MiMo-V2.5 for coding?

Only MiMo-V2.5 has a coding score, 50.0 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 Text: coding or AA Intelligence Index, where it leads.

Which is cheaper, Claude Opus 4.1 or MiMo-V2.5?

Claude Opus 4.1 costs $15.00 per million input tokens and $75.00 per million output tokens; MiMo-V2.5 costs $0.168 and $0.336. Cost per solved task is known for MiMo-V2.5 only.

Which has the bigger context window, Claude Opus 4.1 or MiMo-V2.5?

MiMo-V2.5, with 1.05M tokens against 200K.

How many benchmarks is the Claude Opus 4.1 vs MiMo-V2.5 comparison based on?

49 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 MiMo-V2.5's on 3. Where only one model has a result, the page says so instead of naming a winner.

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