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Claude Haiku 4.5 vs MiMo-V2.5-Pro

Updated October 21, 2026. 60 benchmarks have a result for both. Coding is ranked on the Vibe Coding Index; every other board is shown as published.

Replace Claude Haiku 4.5 Replace MiMo-V2.5-Pro
Claude Haiku 4.5Anthropic
Coding
49.8
Overall
16.9
Output $/M
$5.00
4
MiMo-V2.5-ProXiaomi
Coding
40.0
Overall
26.0
Output $/M
$0.609
56
vs boards won of 60 shared

Decision reading

Pick Claude Haiku 4.5 for coding: it scores 49.8 on the Vibe Coding Index against 40.0 for MiMo-V2.5-Pro.

Pick MiMo-V2.5-Pro when output tokens cost 8.2x less, or when a solved task costs $0.03 against $0.56.

Model AClaude Haiku 4.5Anthropic49.8/1003 independent benchmarks$0.56 per solved taskModel BMiMo-V2.5-ProXiaomi40.0/1001 independent benchmark$0.03 per solved task
Shared results
60
Claude Haiku 4.5 only
34
MiMo-V2.5-Pro only
10
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 Haiku 4.5 49.8 from 3 benchmarks, MiMo-V2.5-Pro 40.0 from 1 benchmark.
Widest category
Coding, 18.4 points apart on average over 11 shared benchmarks.
Widest single gap
LiveCodeBench (Vals AI): Claude Haiku 4.5 41.2% against MiMo-V2.5-Pro 81.3%, 40.2 points apart on a 0 to 100 scale.
Output price
Claude Haiku 4.5 $5.00 against MiMo-V2.5-Pro $0.609 per million output tokens, 8.2x apart.
Context window
Claude Haiku 4.5 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 Haiku 4.5BarsMiMo-V2.5-ProTies
Coding011
Intelligence01
Agentic work05
Reasoning04
Math02
Knowledge27
Web design08
General218
All shared boards456
CodingLike-for-likeFour of these boards feed the Vibe Coding Index011
Coding benchmarks for Claude Haiku 4.5 and MiMo-V2.5-Pro
BenchmarkClaude Haiku 4.5MiMo-V2.5-ProLeader
SWE-bench Verified66.6%Not measuredOnly Claude Haiku 4.5 measured
SWE-bench Multilingual64.7%Not measuredOnly Claude Haiku 4.5 measured
LiveBench coding48.1%Not measuredOnly Claude Haiku 4.5 measured
LMArena WebDev13301480MiMo-V2.5-Pro
AA Coding Index43.960.2MiMo-V2.5-Pro
LiveCodeBench (Vals AI)41.2%81.3%MiMo-V2.5-Pro
SWE-bench Verified (Vals AI)66.6%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)11.4%34.1%MiMo-V2.5-Pro
Code migration (Vals AI)7.5%21.6%MiMo-V2.5-Pro
ProgramBench (Vals AI)0.0%Not measuredOnly Claude Haiku 4.5 measured
Terminal-Bench 2.1 (Vals AI)43.8%57.3%MiMo-V2.5-Pro
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-Bench35.5%Not measuredOnly Claude Haiku 4.5 measured
WeirdML45.4%Not measuredOnly Claude Haiku 4.5 measured
ALE-BenchNot measured899.8Only MiMo-V2.5-Pro measured
LMArena Text: coding14541501MiMo-V2.5-Pro
LMArena Text: software and IT14391495MiMo-V2.5-Pro
LMArena WebDev: React13261469MiMo-V2.5-Pro
LMArena WebDev: HTML13181473MiMo-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 Haiku 4.5 and MiMo-V2.5-Pro
BenchmarkClaude Haiku 4.5MiMo-V2.5-ProLeader
AA Intelligence Index16.926.0MiMo-V2.5-Pro
Epoch Capabilities Index142.2Not measuredOnly Claude Haiku 4.5 measured
Agentic workLike-for-likePublic boards, shown as published, kept out of the index05
Agentic work benchmarks for Claude Haiku 4.5 and MiMo-V2.5-Pro
BenchmarkClaude Haiku 4.5MiMo-V2.5-ProLeader
AA Agentic Index8.021.3MiMo-V2.5-Pro
LiveBench research42.2%Not measuredOnly Claude Haiku 4.5 measured
LiveBench browser40.0%Not measuredOnly Claude Haiku 4.5 measured
LiveBench long agentic11.1%Not measuredOnly Claude Haiku 4.5 measured
Finance Agent (Vals AI)31.0%41.5%MiMo-V2.5-Pro
Tax Agent Bench (Vals AI)5.9%11.5%MiMo-V2.5-Pro
Legal Research Bench (Vals AI)10.6%15.9%MiMo-V2.5-Pro
Excel Modeling Benchmark (Vals AI)22.7%55.2%MiMo-V2.5-Pro
τ²-Bench TelecomNot measured94.2%Only MiMo-V2.5-Pro measured
BALROG31.2%Not measuredOnly Claude Haiku 4.5 measured
DeepResearch Bench45.5%Not measuredOnly Claude Haiku 4.5 measured
Vending-Bench 2$459Not measuredOnly Claude Haiku 4.5 measured
Neither model has a result on the other 27 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index04
Reasoning benchmarks for Claude Haiku 4.5 and MiMo-V2.5-Pro
BenchmarkClaude Haiku 4.5MiMo-V2.5-ProLeader
GPQA Diamond72.2%82.6%MiMo-V2.5-Pro
LiveBench reasoning61.7%Not measuredOnly Claude Haiku 4.5 measured
MMMU Pro (Vals AI)46.1%Not measuredOnly Claude Haiku 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)71.2%Not measuredOnly Claude Haiku 4.5 measured
ARC-AGI47.7%Not measuredOnly Claude Haiku 4.5 measured
ARC-AGI-24.0%Not measuredOnly Claude Haiku 4.5 measured
Chess puzzles8.0%Not measuredOnly Claude Haiku 4.5 measured
LMArena Text: hard prompts14211486MiMo-V2.5-Pro
LMArena Text: expert14431501MiMo-V2.5-Pro
LMArena Text: hard prompts in English14351494MiMo-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 Haiku 4.5 and MiMo-V2.5-Pro
BenchmarkClaude Haiku 4.5MiMo-V2.5-ProLeader
AIME82.7%Not measuredOnly Claude Haiku 4.5 measured
MGSM (Vals AI)92.2%Not measuredOnly Claude Haiku 4.5 measured
OTIS Mock AIME66.7%Not measuredOnly Claude Haiku 4.5 measured
ProofBenchNot measured22.0%Only MiMo-V2.5-Pro measured
MATH level 596.4%Not measuredOnly Claude Haiku 4.5 measured
LMArena Text: math13981481MiMo-V2.5-Pro
LMArena Text: mathematical work14301491MiMo-V2.5-Pro
Neither model has a result on the other 6 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index27
Knowledge benchmarks for Claude Haiku 4.5 and MiMo-V2.5-Pro
BenchmarkClaude Haiku 4.5MiMo-V2.5-ProLeader
MMLU Pro78.7%84.6%MiMo-V2.5-Pro
LegalBench (Vals AI)81.2%77.1%Claude Haiku 4.5
CaseLaw (Vals AI)56.5%Not measuredOnly Claude Haiku 4.5 measured
CorpFin (Vals AI)60.6%61.4%MiMo-V2.5-Pro
TaxEval (Vals AI)67.5%73.8%MiMo-V2.5-Pro
MortgageTax (Vals AI)62.2%Not measuredOnly Claude Haiku 4.5 measured
MedQA (Vals AI)79.6%Not measuredOnly Claude Haiku 4.5 measured
MedCode (Vals AI)32.7%32.5%Claude Haiku 4.5
SimpleQA Verified13.2%Not measuredOnly Claude Haiku 4.5 measured
LMArena Text: science14061482MiMo-V2.5-Pro
LMArena Text: medicine and healthcare13941473MiMo-V2.5-Pro
LMArena Text: legal and government14001474MiMo-V2.5-Pro
LMArena Text: business and finance14001466MiMo-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 index08
Web design benchmarks for Claude Haiku 4.5 and MiMo-V2.5-Pro
BenchmarkClaude Haiku 4.5MiMo-V2.5-ProLeader
Design Arena: websites11221267MiMo-V2.5-Pro
Design Arena: UI components11001248MiMo-V2.5-Pro
Design Arena: game dev10971261MiMo-V2.5-Pro
Design Arena: data viz11241257MiMo-V2.5-Pro
Design Arena: 3D10721244MiMo-V2.5-Pro
Design Arena: all code categories11151266MiMo-V2.5-Pro
Design Arena: SVG10251181MiMo-V2.5-Pro
Design Arena: ASCII art11391157MiMo-V2.5-Pro
LiveBench design59.9%Not measuredOnly Claude Haiku 4.5 measured
GeneralLike-for-likePublic boards, shown as published, kept out of the index218
General benchmarks for Claude Haiku 4.5 and MiMo-V2.5-Pro
BenchmarkClaude Haiku 4.5MiMo-V2.5-ProLeader
LiveBench data analysis59.3%Not measuredOnly Claude Haiku 4.5 measured
Public Benefits Bench (Vals AI)54.3%Not measuredOnly Claude Haiku 4.5 measured
SAGE (Vals AI)31.8%Not measuredOnly Claude Haiku 4.5 measured
MedScribe (Vals AI)85.2%83.7%Claude Haiku 4.5
Vals Multimodal Index42.9%Not measuredOnly Claude Haiku 4.5 measured
IFBenchNot measured79.9%Only MiMo-V2.5-Pro measured
Long context reasoning (AA-LCR)Not measured79.7%Only MiMo-V2.5-Pro measured
DTBench73.6%84.5%MiMo-V2.5-Pro
LMCA30.9%29.5%Claude Haiku 4.5
ExploitBench13.7%Not measuredOnly Claude Haiku 4.5 measured
LMArena Text13971464MiMo-V2.5-Pro
LMArena Text: instruction following14141475MiMo-V2.5-Pro
LMArena Text: creative writing13711438MiMo-V2.5-Pro
LMArena Text: English14141477MiMo-V2.5-Pro
LMArena Text: non-English13771448MiMo-V2.5-Pro
LMArena Text: Chinese14181507MiMo-V2.5-Pro
LMArena Text: German13741459MiMo-V2.5-Pro
LMArena Text: Japanese13381410MiMo-V2.5-Pro
LMArena Text: Korean13461435MiMo-V2.5-Pro
LMArena Text: French14111487MiMo-V2.5-Pro
LMArena Text: Spanish14211469MiMo-V2.5-Pro
LMArena Text: Russian13811449MiMo-V2.5-Pro
LMArena Text: Polish13431464MiMo-V2.5-Pro
LMArena Text: multi-turn14091476MiMo-V2.5-Pro
LMArena Text: longer queries14271481MiMo-V2.5-Pro
LMArena Text: writing and language13861451MiMo-V2.5-Pro
LMArena Text: entertainment and media13691438MiMo-V2.5-Pro
LMArena Document1420Not measuredOnly Claude Haiku 4.5 measured
Neither model has a result on the other 18 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for Claude Haiku 4.5 and MiMo-V2.5-Pro
BenchmarkClaude Haiku 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 Haiku 4.5$0.0035Fits 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 Haiku 4.5$0.065Fits 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 Haiku 4.5$0.250Exceeds 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 Haiku 4.5 and MiMo-V2.5-Pro
SpecificationAnthropic Claude Haiku 4.5Xiaomi MiMo-V2.5-Pro
MakerAnthropicXiaomi
WeightsNo public weights listedOpen weights
ReleasedOctober 15, 2025April 22, 2026
Context window200K1.05M
Input $/Mtok$1.00$0.3045
Output $/Mtok$5.00$0.609
Coding index49.840.0
Independent measurements behind it31
Cost per solved task$0.56$0.03
SourceOpenRouter listingOpenRouter listing

Questions

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

Pick Claude Haiku 4.5 for coding: it scores 49.8 on the Vibe Coding Index against 40.0 for MiMo-V2.5-Pro. Pick MiMo-V2.5-Pro when output tokens cost 8.2x less, or when a solved task costs $0.03 against $0.56.

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

Claude Haiku 4.5 costs $1.00 per million input tokens and $5.00 per million output tokens; MiMo-V2.5-Pro costs $0.3045 and $0.609. Per solved SWE-bench Verified task, Claude Haiku 4.5 costs $0.56 and MiMo-V2.5-Pro $0.03.

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

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

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

60 benchmarks have a result for both models as of October 21, 2026. Claude Haiku 4.5's coding index rests on 3 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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