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Claude Sonnet 4.5 vs MiMo-V2.5-Pro

Updated October 21, 2026. 55 benchmarks have a result for both. Coding is ranked on the Vibe Coding Index; every other board is shown as published.

Replace Claude Sonnet 4.5 Replace MiMo-V2.5-Pro
Claude Sonnet 4.5Anthropic
Coding
59.1
Overall
20.7
Output $/M
$15.00
8
MiMo-V2.5-ProXiaomi
Coding
40.0
Overall
26.0
Output $/M
$0.609
47
vs boards won of 55 shared

Decision reading

Pick Claude Sonnet 4.5 for coding: it scores 59.1 on the Vibe Coding Index against 40.0 for MiMo-V2.5-Pro.

Pick MiMo-V2.5-Pro when output tokens cost 24.6x less, or when a solved task costs $0.03 against $1.16.

Model AClaude Sonnet 4.5Anthropic59.1/1002 independent benchmarks$1.16 per solved taskModel BMiMo-V2.5-ProXiaomi40.0/1001 independent benchmark$0.03 per solved task
Shared results
55
Claude Sonnet 4.5 only
37
MiMo-V2.5-Pro only
15
Like-for-like categories
8 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 Sonnet 4.5 59.1 from 2 benchmarks, MiMo-V2.5-Pro 40.0 from 1 benchmark.
Widest category
Web design, 9.7 points apart on average over 8 shared benchmarks.
Widest single gap
LMArena WebDev: React: Claude Sonnet 4.5 1386 against MiMo-V2.5-Pro 1469, 13.9 points apart on a 0 to 100 scale.
Output price
Claude Sonnet 4.5 $15.00 against MiMo-V2.5-Pro $0.609 per million output tokens, 24.6x apart.
Context window
Claude Sonnet 4.5 takes 1M 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 Sonnet 4.5BarsMiMo-V2.5-ProTies
Coding09
Intelligence01
Agentic work01
Reasoning04
Math03
Knowledge45
Web design17
General317
All shared boards847
CodingLike-for-likeFour of these boards feed the Vibe Coding Index09
Coding benchmarks for Claude Sonnet 4.5 and MiMo-V2.5-Pro
BenchmarkClaude Sonnet 4.5MiMo-V2.5-ProLeader
SWE-bench Verified74.8%Not measuredOnly Claude Sonnet 4.5 measured
SWE-bench Multilingual67.0%Not measuredOnly Claude Sonnet 4.5 measured
LMArena WebDev13941480MiMo-V2.5-Pro
AA Coding Index52.160.2MiMo-V2.5-Pro
LiveCodeBench (Vals AI)73.0%81.3%MiMo-V2.5-Pro
SWE-bench Verified (Vals AI)70.0%74.0%MiMo-V2.5-Pro
Terminal-Bench 4 (Vals AI)Not measured0.5%Only MiMo-V2.5-Pro measured
Vibe Code Bench (Vals AI)22.6%34.1%MiMo-V2.5-Pro
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-Bench46.5%Not measuredOnly Claude Sonnet 4.5 measured
GSO-Bench14.7%Not measuredOnly Claude Sonnet 4.5 measured
WeirdML47.7%Not measuredOnly Claude Sonnet 4.5 measured
Cybench60.0%Not measuredOnly Claude Sonnet 4.5 measured
ALE-BenchNot measured899.8Only MiMo-V2.5-Pro measured
LMArena Text: coding14881501MiMo-V2.5-Pro
LMArena Text: software and IT14731495MiMo-V2.5-Pro
LMArena WebDev: React13861469MiMo-V2.5-Pro
LMArena WebDev: HTML13991473MiMo-V2.5-Pro
Neither model has a result on the other 17 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index01
Intelligence benchmarks for Claude Sonnet 4.5 and MiMo-V2.5-Pro
BenchmarkClaude Sonnet 4.5MiMo-V2.5-ProLeader
AA Intelligence Index20.726.0MiMo-V2.5-Pro
Epoch Capabilities Index146.7Not measuredOnly Claude Sonnet 4.5 measured
Agentic workLike-for-likePublic boards, shown as published, kept out of the index01
Agentic work benchmarks for Claude Sonnet 4.5 and MiMo-V2.5-Pro
BenchmarkClaude Sonnet 4.5MiMo-V2.5-ProLeader
AA Agentic Index15.821.3MiMo-V2.5-Pro
Design Arena: agents building web apps1060Not measuredOnly Claude Sonnet 4.5 measured
Design Arena: agents building full-stack apps1050Not measuredOnly Claude Sonnet 4.5 measured
Design Arena: agents building mobile apps1137Not measuredOnly Claude Sonnet 4.5 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 horizons67.4%Not measuredOnly Claude Sonnet 4.5 measured
Remote Labor Index2.1%Not measuredOnly Claude Sonnet 4.5 measured
GDPval42.5%Not measuredOnly Claude Sonnet 4.5 measured
DeepResearch Bench52.6%Not measuredOnly Claude Sonnet 4.5 measured
OSWorld62.9%Not measuredOnly Claude Sonnet 4.5 measured
Vending-Bench 2$3,839Not measuredOnly Claude Sonnet 4.5 measured
Neither model has a result on the other 24 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index04
Reasoning benchmarks for Claude Sonnet 4.5 and MiMo-V2.5-Pro
BenchmarkClaude Sonnet 4.5MiMo-V2.5-ProLeader
GPQA Diamond81.6%82.6%MiMo-V2.5-Pro
MMMU Pro (Vals AI)79.3%Not measuredOnly Claude Sonnet 4.5 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)82.3%Not measuredOnly Claude Sonnet 4.5 measured
ARC-AGI63.7%Not measuredOnly Claude Sonnet 4.5 measured
ARC-AGI-213.6%Not measuredOnly Claude Sonnet 4.5 measured
SimpleBench54.3%Not measuredOnly Claude Sonnet 4.5 measured
Chess puzzles10.0%Not measuredOnly Claude Sonnet 4.5 measured
Mystery game puzzles17.0%Not measuredOnly Claude Sonnet 4.5 measured
EBR-bench2.4%Not measuredOnly Claude Sonnet 4.5 measured
VPCT39.8%Not measuredOnly Claude Sonnet 4.5 measured
LMArena Text: hard prompts14621486MiMo-V2.5-Pro
LMArena Text: expert14831501MiMo-V2.5-Pro
LMArena Text: hard prompts in English14711494MiMo-V2.5-Pro
Neither model has a result on the other 6 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index03
Math benchmarks for Claude Sonnet 4.5 and MiMo-V2.5-Pro
BenchmarkClaude Sonnet 4.5MiMo-V2.5-ProLeader
AIME88.2%Not measuredOnly Claude Sonnet 4.5 measured
MGSM (Vals AI)94.3%Not measuredOnly Claude Sonnet 4.5 measured
OTIS Mock AIME77.8%Not measuredOnly Claude Sonnet 4.5 measured
FrontierMath, tiers 1 to 323.9%Not measuredOnly Claude Sonnet 4.5 measured
FrontierMath, tier 42.4%Not measuredOnly Claude Sonnet 4.5 measured
ProofBench19.0%22.0%MiMo-V2.5-Pro
MATH level 597.7%Not measuredOnly Claude Sonnet 4.5 measured
LMArena Text: math14491481MiMo-V2.5-Pro
LMArena Text: mathematical work14621491MiMo-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 index45
Knowledge benchmarks for Claude Sonnet 4.5 and MiMo-V2.5-Pro
BenchmarkClaude Sonnet 4.5MiMo-V2.5-ProLeader
MMLU Pro87.4%84.6%Claude Sonnet 4.5
LegalBench (Vals AI)84.1%77.1%Claude Sonnet 4.5
CaseLaw (Vals AI)62.2%Not measuredOnly Claude Sonnet 4.5 measured
CorpFin (Vals AI)62.0%61.4%Claude Sonnet 4.5
TaxEval (Vals AI)73.3%73.8%MiMo-V2.5-Pro
MortgageTax (Vals AI)64.0%Not measuredOnly Claude Sonnet 4.5 measured
MedQA (Vals AI)94.7%Not measuredOnly Claude Sonnet 4.5 measured
MedCode (Vals AI)44.1%32.5%Claude Sonnet 4.5
SimpleQA Verified30.7%Not measuredOnly Claude Sonnet 4.5 measured
LMArena Text: science14481482MiMo-V2.5-Pro
LMArena Text: medicine and healthcare14441473MiMo-V2.5-Pro
LMArena Text: legal and government14511474MiMo-V2.5-Pro
LMArena Text: business and finance14401466MiMo-V2.5-Pro
Neither model has a result on the other 4 boards here
Web designLike-for-likePublic boards, shown as published, kept out of the index17
Web design benchmarks for Claude Sonnet 4.5 and MiMo-V2.5-Pro
BenchmarkClaude Sonnet 4.5MiMo-V2.5-ProLeader
Design Arena: websites11901267MiMo-V2.5-Pro
Design Arena: UI components11731248MiMo-V2.5-Pro
Design Arena: game dev11661261MiMo-V2.5-Pro
Design Arena: data viz11671257MiMo-V2.5-Pro
Design Arena: 3D11581244MiMo-V2.5-Pro
Design Arena: all code categories11831266MiMo-V2.5-Pro
Design Arena: SVG11141181MiMo-V2.5-Pro
Design Arena: ASCII art12041157Claude Sonnet 4.5
Neither model has a result on the other 1 board here
GeneralLike-for-likePublic boards, shown as published, kept out of the index317
General benchmarks for Claude Sonnet 4.5 and MiMo-V2.5-Pro
BenchmarkClaude Sonnet 4.5MiMo-V2.5-ProLeader
SAGE (Vals AI)36.1%Not measuredOnly Claude Sonnet 4.5 measured
MedScribe (Vals AI)84.5%83.7%Claude Sonnet 4.5
IFBenchNot measured79.9%Only MiMo-V2.5-Pro measured
Long context reasoning (AA-LCR)Not measured79.7%Only MiMo-V2.5-Pro measured
DTBench83.2%84.5%MiMo-V2.5-Pro
LMCA38.8%29.5%Claude Sonnet 4.5
LMArena Text14381464MiMo-V2.5-Pro
LMArena Text: instruction following14591475MiMo-V2.5-Pro
LMArena Text: creative writing14421438Claude Sonnet 4.5
LMArena Text: English14501477MiMo-V2.5-Pro
LMArena Text: non-English14251448MiMo-V2.5-Pro
LMArena Text: Chinese14601507MiMo-V2.5-Pro
LMArena Text: German14271459MiMo-V2.5-Pro
LMArena Text: Japanese13901410MiMo-V2.5-Pro
LMArena Text: Korean14021435MiMo-V2.5-Pro
LMArena Text: French14591487MiMo-V2.5-Pro
LMArena Text: Spanish14581469MiMo-V2.5-Pro
LMArena Text: Russian14371449MiMo-V2.5-Pro
LMArena Text: Polish14231464MiMo-V2.5-Pro
LMArena Text: multi-turn14651476MiMo-V2.5-Pro
LMArena Text: longer queries14751481MiMo-V2.5-Pro
LMArena Text: writing and language14421451MiMo-V2.5-Pro
LMArena Text: entertainment and media14281438MiMo-V2.5-Pro
LMArena Document1450Not measuredOnly Claude Sonnet 4.5 measured
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 Sonnet 4.5 and MiMo-V2.5-Pro
BenchmarkClaude Sonnet 4.5MiMo-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 Sonnet 4.5$0.011Fits 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 Sonnet 4.5$0.195Fits 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 Sonnet 4.5$0.750Fits in one request
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 Sonnet 4.5 and MiMo-V2.5-Pro
SpecificationAnthropic Claude Sonnet 4.5Xiaomi MiMo-V2.5-Pro
MakerAnthropicXiaomi
WeightsNo public weights listedOpen weights
ReleasedSeptember 29, 2025April 22, 2026
Context window1M1.05M
Input $/Mtok$3.00$0.3045
Output $/Mtok$15.00$0.609
Coding index59.140.0
Independent measurements behind it21
Cost per solved task$1.16$0.03
SourceOpenRouter listingOpenRouter listing

Questions

Is Claude Sonnet 4.5 better than MiMo-V2.5-Pro for coding?

Pick Claude Sonnet 4.5 for coding: it scores 59.1 on the Vibe Coding Index against 40.0 for MiMo-V2.5-Pro. Pick MiMo-V2.5-Pro when output tokens cost 24.6x less, or when a solved task costs $0.03 against $1.16.

Which is cheaper, Claude Sonnet 4.5 or MiMo-V2.5-Pro?

Claude Sonnet 4.5 costs $3.00 per million input tokens and $15.00 per million output tokens; MiMo-V2.5-Pro costs $0.3045 and $0.609. Per solved SWE-bench Verified task, Claude Sonnet 4.5 costs $1.16 and MiMo-V2.5-Pro $0.03.

Which has the bigger context window, Claude Sonnet 4.5 or MiMo-V2.5-Pro?

MiMo-V2.5-Pro, with 1.05M tokens against 1M.

How many benchmarks is the Claude Sonnet 4.5 vs MiMo-V2.5-Pro comparison based on?

55 benchmarks have a result for both models as of October 21, 2026. Claude Sonnet 4.5's coding index rests on 2 independent benchmarks 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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