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Claude Opus 4.1 vs MiMo-V2.5-Pro

Updated October 21, 2026. 48 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 MiMo-V2.5-Pro
Claude Opus 4.1Anthropic
Coding
27.2
Overall
22.8
Output $/M
$75.00
5
MiMo-V2.5-ProXiaomi
Coding
40.0
Overall
26.0
Output $/M
$0.609
43
vs boards won of 48 shared

Decision reading

Pick MiMo-V2.5-Pro for coding: it scores 40.0 on the Vibe Coding Index against 27.2 for Claude Opus 4.1.

Pick Claude Opus 4.1 when what matters is MMLU Pro or LegalBench (Vals AI), where it leads.

Model AClaude Opus 4.1Anthropic27.2/1001 independent benchmarkNo cost per solved taskModel BMiMo-V2.5-ProXiaomi40.0/1001 independent benchmark$0.03 per solved task
Shared results
48
Claude Opus 4.1 only
23
MiMo-V2.5-Pro only
22
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, MiMo-V2.5-Pro 40.0 from 1 benchmark.
Widest category
Coding, 10.0 points apart on average over 5 shared benchmarks.
Widest single gap
LiveCodeBench (Vals AI): Claude Opus 4.1 66.5% against MiMo-V2.5-Pro 81.3%, 14.9 points apart on a 0 to 100 scale.
Output price
Claude Opus 4.1 $75.00 against MiMo-V2.5-Pro $0.609 per million output tokens, 123.2x apart.
Context window
Claude Opus 4.1 takes 200K tokens, MiMo-V2.5-Pro 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-V2.5-ProTies
Coding05
Intelligence01
Reasoning04
Math02
Knowledge35
Web design17
General119
All shared boards543
CodingLike-for-likeFour of these boards feed the Vibe Coding Index05
Coding benchmarks for Claude Opus 4.1 and MiMo-V2.5-Pro
BenchmarkClaude Opus 4.1MiMo-V2.5-ProLeader
LMArena WebDev13901480MiMo-V2.5-Pro
AA Coding IndexNot measured60.2Only MiMo-V2.5-Pro measured
LiveCodeBench (Vals AI)66.5%81.3%MiMo-V2.5-Pro
SWE-bench Verified (Vals AI)Not measured74.0%Only MiMo-V2.5-Pro measured
Terminal-Bench 4 (Vals AI)Not measured0.5%Only MiMo-V2.5-Pro measured
Vibe Code Bench (Vals AI)Not measured34.1%Only MiMo-V2.5-Pro measured
Code migration (Vals AI)Not measured21.6%Only MiMo-V2.5-Pro measured
Terminal-Bench 2.1 (Vals AI)Not measured57.3%Only MiMo-V2.5-Pro measured
SciCodeNot measured50.6%Only MiMo-V2.5-Pro measured
Terminal-Bench Hard (Artificial Analysis run)Not measured43.2%Only MiMo-V2.5-Pro 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 measured899.8Only MiMo-V2.5-Pro measured
LMArena Text: coding14791501MiMo-V2.5-Pro
LMArena Text: software and IT14561495MiMo-V2.5-Pro
LMArena WebDev: ReactNot measured1469Only MiMo-V2.5-Pro measured
LMArena WebDev: HTML13991473MiMo-V2.5-Pro
Neither model has a result on the other 20 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index01
Intelligence benchmarks for Claude Opus 4.1 and MiMo-V2.5-Pro
BenchmarkClaude Opus 4.1MiMo-V2.5-ProLeader
AA Intelligence Index22.826.0MiMo-V2.5-Pro
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-Pro
BenchmarkClaude Opus 4.1MiMo-V2.5-ProLeader
AA Agentic IndexNot measured21.3Only MiMo-V2.5-Pro measured
Finance Agent (Vals AI)Not measured41.5%Only MiMo-V2.5-Pro measured
Tax Agent Bench (Vals AI)Not measured11.5%Only MiMo-V2.5-Pro measured
Legal Research Bench (Vals AI)Not measured15.9%Only MiMo-V2.5-Pro measured
Excel Modeling Benchmark (Vals AI)Not measured55.2%Only MiMo-V2.5-Pro measured
τ²-Bench TelecomNot measured94.2%Only MiMo-V2.5-Pro 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 30 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index04
Reasoning benchmarks for Claude Opus 4.1 and MiMo-V2.5-Pro
BenchmarkClaude Opus 4.1MiMo-V2.5-ProLeader
GPQA Diamond76.3%82.6%MiMo-V2.5-Pro
MMMU Pro (Vals AI)77.5%Not measuredOnly Claude Opus 4.1 measured
GPQA Diamond (Artificial Analysis run)Not measured86.6%Only MiMo-V2.5-Pro measured
Humanity's Last Exam (Artificial Analysis run)Not measured35.7%Only MiMo-V2.5-Pro 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 prompts14421486MiMo-V2.5-Pro
LMArena Text: expert14381501MiMo-V2.5-Pro
LMArena Text: hard prompts in English14511494MiMo-V2.5-Pro
Neither model has a result on the other 9 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-Pro
BenchmarkClaude Opus 4.1MiMo-V2.5-ProLeader
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 measured22.0%Only MiMo-V2.5-Pro measured
LMArena Text: math14311481MiMo-V2.5-Pro
LMArena Text: mathematical work14341491MiMo-V2.5-Pro
Neither model has a result on the other 4 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index35
Knowledge benchmarks for Claude Opus 4.1 and MiMo-V2.5-Pro
BenchmarkClaude Opus 4.1MiMo-V2.5-ProLeader
MMLU Pro87.9%84.6%Claude Opus 4.1
LegalBench (Vals AI)83.5%77.1%Claude Opus 4.1
CorpFin (Vals AI)Not measured61.4%Only MiMo-V2.5-Pro measured
TaxEval (Vals AI)73.7%73.8%MiMo-V2.5-Pro
MortgageTax (Vals AI)61.1%Not measuredOnly Claude Opus 4.1 measured
MedQA (Vals AI)93.6%Not measuredOnly Claude Opus 4.1 measured
MedCode (Vals AI)47.2%32.5%Claude Opus 4.1
LMArena Text: science14221482MiMo-V2.5-Pro
LMArena Text: medicine and healthcare14161473MiMo-V2.5-Pro
LMArena Text: legal and government14211474MiMo-V2.5-Pro
LMArena Text: business and finance14061466MiMo-V2.5-Pro
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-Pro
BenchmarkClaude Opus 4.1MiMo-V2.5-ProLeader
Design Arena: websites11771267MiMo-V2.5-Pro
Design Arena: UI components11641248MiMo-V2.5-Pro
Design Arena: game dev11721261MiMo-V2.5-Pro
Design Arena: data viz11661257MiMo-V2.5-Pro
Design Arena: 3D11531244MiMo-V2.5-Pro
Design Arena: all code categories11711266MiMo-V2.5-Pro
Design Arena: SVG11521181MiMo-V2.5-Pro
Design Arena: ASCII art11671157Claude 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 index119
General benchmarks for Claude Opus 4.1 and MiMo-V2.5-Pro
BenchmarkClaude Opus 4.1MiMo-V2.5-ProLeader
SAGE (Vals AI)31.4%Not measuredOnly Claude Opus 4.1 measured
MedScribe (Vals AI)73.9%83.7%MiMo-V2.5-Pro
IFBenchNot measured79.9%Only MiMo-V2.5-Pro measured
Long context reasoning (AA-LCR)Not measured79.7%Only MiMo-V2.5-Pro measured
DTBench80.0%84.5%MiMo-V2.5-Pro
LMCA37.1%29.5%Claude Opus 4.1
Creative writing (Lech Mazur)84.7%Not measuredOnly Claude Opus 4.1 measured
LMArena Text14191464MiMo-V2.5-Pro
LMArena Text: instruction following14351475MiMo-V2.5-Pro
LMArena Text: creative writing14121438MiMo-V2.5-Pro
LMArena Text: English14331477MiMo-V2.5-Pro
LMArena Text: non-English14051448MiMo-V2.5-Pro
LMArena Text: Chinese14271507MiMo-V2.5-Pro
LMArena Text: German14131459MiMo-V2.5-Pro
LMArena Text: Japanese13771410MiMo-V2.5-Pro
LMArena Text: Korean13811435MiMo-V2.5-Pro
LMArena Text: French14331487MiMo-V2.5-Pro
LMArena Text: Spanish14481469MiMo-V2.5-Pro
LMArena Text: Russian14221449MiMo-V2.5-Pro
LMArena Text: Polish14131464MiMo-V2.5-Pro
LMArena Text: multi-turn14441476MiMo-V2.5-Pro
LMArena Text: longer queries14551481MiMo-V2.5-Pro
LMArena Text: writing and language14181451MiMo-V2.5-Pro
LMArena Text: entertainment and media13981438MiMo-V2.5-Pro
Neither model has a result on the other 22 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-Pro
BenchmarkClaude Opus 4.1MiMo-V2.5-ProLeader
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-Pro$0.0006Fits in one request

MiMo-V2.5-Pro costs less

Repository review

50K input + 3K output tokens

Claude Opus 4.1$0.975Fits in one request
MiMo-V2.5-Pro$0.017Fits in one request

MiMo-V2.5-Pro costs less

Agent loop

200K input + 10K output tokens

Claude Opus 4.1$3.75Exceeds the context window
MiMo-V2.5-Pro$0.067Fits in one request

MiMo-V2.5-Pro 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-Pro
SpecificationAnthropic Claude Opus 4.1Xiaomi MiMo-V2.5-Pro
MakerAnthropicXiaomi
WeightsNo public weights listedOpen weights
ReleasedAugust 5, 2025April 22, 2026
Context window200K1.05M
Input $/Mtok$15.00$0.3045
Output $/Mtok$75.00$0.609
Coding index27.240.0
Independent measurements behind it11
Cost per solved taskNot computable$0.03
SourceOpenRouter listingOpenRouter listing

Questions

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

Pick MiMo-V2.5-Pro for coding: it scores 40.0 on the Vibe Coding Index against 27.2 for Claude Opus 4.1. Pick Claude Opus 4.1 when what matters is MMLU Pro or LegalBench (Vals AI), where it leads.

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

Claude Opus 4.1 costs $15.00 per million input tokens and $75.00 per million output tokens; MiMo-V2.5-Pro costs $0.3045 and $0.609. Cost per solved task is known for MiMo-V2.5-Pro only.

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

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

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

48 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 MiMo-V2.5-Pro's on 1. Where only one model has a result, the page says so instead of naming a winner.

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