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Kimi K3 vs MiMo-V2.5

Kimi K3 leads MiMo-V2.5 on coding, 62.3 to 50.0 on the Vibe Coding Index, and MiMo-V2.5 costs 44.6x less per output token ($0.336 vs $15.00 per million). Updated October 21, 2026; 67 benchmarks have a result for both.

Replace Kimi K3 Replace MiMo-V2.5
Kimi K3Moonshot AI
Coding
62.3
Overall
66.5
Output $/M
$15.00
67
MiMo-V2.5Xiaomi
Coding
50.0
Overall
50.7
Output $/M
$0.336
0
vs boards won of 67 shared

Kimi K3 or MiMo-V2.5: which to pick

Pick Kimi K3 for coding: it scores 62.3 on the Vibe Coding Index against 50.0 for MiMo-V2.5.

Pick MiMo-V2.5 for output tokens 44.6x cheaper ($0.336 vs $15.00 per million) and a lower cost per solved task ($0.01 against $0.81).

Model AKimi K3Moonshot AI62.3/1006 independent benchmarks$0.81 per solved taskModel BMiMo-V2.5Xiaomi50.0/1003 independent benchmarks$0.01 per solved task
Shared results
67
Kimi K3 only
50
MiMo-V2.5 only
13
Like-for-like categories
8 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
Kimi K3 62.3 from 6 benchmarks, MiMo-V2.5 50.0 from 3 benchmarks.
Widest category
Math, 29.9 points apart on average over 3 shared benchmarks.
Widest single gap
ProofBench: Kimi K3 87.0% against MiMo-V2.5 16.0%, 71.0 points apart on a 0 to 100 scale.
Output price
Kimi K3 $15.00 against MiMo-V2.5 $0.336 per million output tokens, 44.6x apart.
Context window
Kimi K3 takes 1.05M 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
CategoryKimi K3BarsMiMo-V2.5Ties
Coding130
Intelligence10
Agentic work50
Reasoning70
Math30
Knowledge100
Web design70
General210
All shared boards670
CodingLike-for-likeSix of these boards feed the Vibe Coding Index130
Coding benchmarks for Kimi K3 and MiMo-V2.5
BenchmarkKimi K3MiMo-V2.5Leader
LiveBench coding59.3%Not measuredOnly Kimi K3 measured
LMArena WebDev16551438Kimi K3
AA Coding Index76.256.8Kimi K3
LiveCodeBench (Vals AI)87.2%81.5%Kimi K3
SWE-bench Verified (Vals AI)93.4%71.0%Kimi K3
Terminal-Bench 4 (Vals AI)17.2%Not measuredOnly Kimi K3 measured
Vibe Code Bench (Vals AI)85.0%42.2%Kimi K3
Code migration (Vals AI)16.1%14.2%Kimi K3
ProgramBench (Vals AI)2.0%Not measuredOnly Kimi K3 measured
IOI (Vals AI)48.9%Not measuredOnly Kimi K3 measured
Terminal-Bench 2.1 (Vals AI)80.9%60.7%Kimi K3
SWE-bench Multimodal (Vals AI)44.2%Not measuredOnly Kimi K3 measured
Vibe Code Bench 1-100 (Vals AI)18.2%Not measuredOnly Kimi K3 measured
CyberBench (Vals AI)75.2%Not measuredOnly Kimi K3 measured
SciCode59.5%43.9%Kimi K3
Terminal-Bench Hard (Artificial Analysis run)Not measured41.7%Only MiMo-V2.5 measured
FrontierCode44.2%Not measuredOnly Kimi K3 measured
FrontierSWE25.9%Not measuredOnly Kimi K3 measured
WeirdML82.6%Not measuredOnly Kimi K3 measured
ALE-Bench1524.5514.0Kimi K3
LMArena Text: coding15081469Kimi K3
LMArena Text: software and IT14991463Kimi K3
LMArena WebDev: React16701425Kimi K3
LMArena WebDev: HTML16441429Kimi K3
LMArena WebDev: from an image1579Not measuredOnly Kimi K3 measured
Neither model has a result on the other 14 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index10
Intelligence benchmarks for Kimi K3 and MiMo-V2.5
BenchmarkKimi K3MiMo-V2.5Leader
AA Intelligence Index43.621.8Kimi K3
Epoch Capabilities Index157.9Not measuredOnly Kimi K3 measured
Agentic workLike-for-likePublic boards, shown as published, kept out of the index50
Agentic work benchmarks for Kimi K3 and MiMo-V2.5
BenchmarkKimi K3MiMo-V2.5Leader
AA Agentic Index50.015.8Kimi K3
Design Arena: agents building web apps1295Not measuredOnly Kimi K3 measured
Design Arena: agents building full-stack apps1315Not measuredOnly Kimi K3 measured
Design Arena: agents building mobile apps1269Not measuredOnly Kimi K3 measured
Design Arena: agents building Android apps1250Not measuredOnly Kimi K3 measured
Design Arena: agents building Godot games1223Not measuredOnly Kimi K3 measured
Design Arena: agents building games1252Not measuredOnly Kimi K3 measured
Design Arena: HTML slides1256Not measuredOnly Kimi K3 measured
Design Arena: PowerPoint slides1273Not measuredOnly Kimi K3 measured
Design Arena: spreadsheets1058Not measuredOnly Kimi K3 measured
LiveBench research79.0%Not measuredOnly Kimi K3 measured
LiveBench browser16.0%Not measuredOnly Kimi K3 measured
LiveBench long agentic42.8%Not measuredOnly Kimi K3 measured
Finance Agent (Vals AI)53.1%36.7%Kimi K3
Tax Agent Bench (Vals AI)33.4%7.8%Kimi K3
Legal Research Bench (Vals AI)46.1%9.1%Kimi K3
Harvey's Legal Agent Benchmark (Vals AI)12.9%Not measuredOnly Kimi K3 measured
Excel Modeling Benchmark (Vals AI)66.7%55.1%Kimi K3
BioMysteryBench (Vals AI)72.6%Not measuredOnly Kimi K3 measured
Terminal-Bench-Science (Vals AI)1.4%Not measuredOnly Kimi K3 measured
Time Horizon Index (Vals AI)10.5%Not measuredOnly Kimi K3 measured
τ²-Bench TelecomNot measured90.6%Only MiMo-V2.5 measured
APEX-Agents47.8%Not measuredOnly Kimi K3 measured
PostTrainBench32.0%Not measuredOnly Kimi K3 measured
Vending-Bench 2$5,165Not measuredOnly Kimi K3 measured
Neither model has a result on the other 16 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index70
Reasoning benchmarks for Kimi K3 and MiMo-V2.5
BenchmarkKimi K3MiMo-V2.5Leader
GPQA Diamond92.9%81.6%Kimi K3
LiveBench reasoning90.7%Not measuredOnly Kimi K3 measured
MMMU Pro (Vals AI)88.2%80.0%Kimi K3
GPQA Diamond (Artificial Analysis run)93.5%84.9%Kimi K3
Humanity's Last Exam (Artificial Analysis run)46.9%27.2%Kimi K3
GPQA Diamond (Epoch AI run)93.1%Not measuredOnly Kimi K3 measured
ARC-AGI94.5%Not measuredOnly Kimi K3 measured
ARC-AGI-260.4%Not measuredOnly Kimi K3 measured
SimpleBench60.7%Not measuredOnly Kimi K3 measured
Chess puzzles37.0%Not measuredOnly Kimi K3 measured
Mystery game puzzles26.0%Not measuredOnly Kimi K3 measured
LMArena Text: hard prompts14951450Kimi K3
LMArena Text: expert15201459Kimi K3
LMArena Text: hard prompts in English14961461Kimi K3
LMArena Vision: diagramsNot measured1269Only MiMo-V2.5 measured
LMArena Vision: homeworkNot measured1262Only MiMo-V2.5 measured
Neither model has a result on the other 6 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index30
Math benchmarks for Kimi K3 and MiMo-V2.5
BenchmarkKimi K3MiMo-V2.5Leader
OTIS Mock AIME97.2%Not measuredOnly Kimi K3 measured
FrontierMath, tiers 1 to 372.2%Not measuredOnly Kimi K3 measured
FrontierMath, tier 439.0%Not measuredOnly Kimi K3 measured
ProofBench87.0%16.0%Kimi K3
LMArena Text: math14941436Kimi K3
LMArena Text: mathematical work15051451Kimi K3
Neither model has a result on the other 7 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index100
Knowledge benchmarks for Kimi K3 and MiMo-V2.5
BenchmarkKimi K3MiMo-V2.5Leader
MMLU Pro88.0%82.9%Kimi K3
LegalBench (Vals AI)86.2%78.9%Kimi K3
CorpFin (Vals AI)71.6%59.9%Kimi K3
TaxEval (Vals AI)75.7%71.8%Kimi K3
MortgageTax (Vals AI)66.3%59.3%Kimi K3
MedCode (Vals AI)49.4%31.9%Kimi K3
SimpleQA Verified50.6%Not measuredOnly Kimi K3 measured
LMArena Text: science15081440Kimi K3
LMArena Text: medicine and healthcare14891432Kimi K3
LMArena Text: legal and government15031425Kimi K3
LMArena Text: business and finance14701432Kimi K3
Neither model has a result on the other 7 boards here
Web designLike-for-likePublic boards, shown as published, kept out of the index70
Web design benchmarks for Kimi K3 and MiMo-V2.5
BenchmarkKimi K3MiMo-V2.5Leader
Design Arena: websites13351266Kimi K3
Design Arena: UI components13441258Kimi K3
Design Arena: game dev13591249Kimi K3
Design Arena: data viz13511249Kimi K3
Design Arena: 3D13881216Kimi K3
Design Arena: all code categories13601260Kimi K3
Design Arena: SVG13021178Kimi K3
Design Arena: ASCII artNot measured1140Only MiMo-V2.5 measured
LiveBench design77.2%Not measuredOnly Kimi K3 measured
GeneralLike-for-likePublic boards, shown as published, kept out of the index210
General benchmarks for Kimi K3 and MiMo-V2.5
BenchmarkKimi K3MiMo-V2.5Leader
Vals Index53.0%Not measuredOnly Kimi K3 measured
LiveBench data analysis78.7%Not measuredOnly Kimi K3 measured
Public Benefits Bench (Vals AI)68.2%Not measuredOnly Kimi K3 measured
SAGE (Vals AI)52.8%43.3%Kimi K3
MedScribe (Vals AI)88.0%72.2%Kimi K3
Vals Multimodal Index73.4%52.8%Kimi K3
IFBenchNot measured67.1%Only MiMo-V2.5 measured
Long context reasoning (AA-LCR)88.7%73.0%Kimi K3
DTBench91.2%Not measuredOnly Kimi K3 measured
LMCA52.7%Not measuredOnly Kimi K3 measured
Surface Evolver Bench95.0%Not measuredOnly Kimi K3 measured
Furniture assembly34.2%Not measuredOnly Kimi K3 measured
LMArena Text14761428Kimi K3
LMArena Text: instruction following14851435Kimi K3
LMArena Text: creative writing14571393Kimi K3
LMArena VisionNot measured1247Only MiMo-V2.5 measured
LMArena Text: English14811447Kimi K3
LMArena Text: non-English14661405Kimi K3
LMArena Text: Chinese15291469Kimi K3
LMArena Text: German14901421Kimi K3
LMArena Text: Japanese14941306Kimi K3
LMArena Text: Korean14601361Kimi K3
LMArena Text: French14921448Kimi K3
LMArena Text: Spanish14721414Kimi K3
LMArena Text: Russian14851396Kimi K3
LMArena Text: Polish14581413Kimi K3
LMArena Text: multi-turn14891445Kimi K3
LMArena Text: longer queries14941445Kimi K3
LMArena Text: writing and language14711409Kimi K3
LMArena Text: entertainment and media14531399Kimi K3
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 10 boards here
Image generationNot comparablePublic boards, shown as published, kept out of the index0 boards, none shared
Image generation benchmarks for Kimi K3 and MiMo-V2.5
BenchmarkKimi K3MiMo-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

Kimi K3$0.011Fits in one request
MiMo-V2.5$0.0003Fits in one request

MiMo-V2.5 costs less

Repository review

50K input + 3K output tokens

Kimi K3$0.195Fits in one request
MiMo-V2.5$0.0094Fits in one request

MiMo-V2.5 costs less

Agent loop

200K input + 10K output tokens

Kimi K3$0.750Fits in one request
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 Kimi K3 and MiMo-V2.5
SpecificationMoonshotAI Kimi K3Xiaomi MiMo-V2.5
MakerMoonshot AIXiaomi
WeightsOpen weightsOpen weights
ReleasedJuly 16, 2026April 22, 2026
Context window1.05M1.05M
Input $/Mtok$3.00$0.168
Output $/Mtok$15.00$0.336
Coding index62.350.0
Independent measurements behind it63
Cost per solved task$0.81$0.01
SourceOpenRouter listingOpenRouter listing

Questions

Is Kimi K3 better than MiMo-V2.5 for coding?

Pick Kimi K3 for coding: it scores 62.3 on the Vibe Coding Index against 50.0 for MiMo-V2.5. Pick MiMo-V2.5 for output tokens 44.6x cheaper ($0.336 vs $15.00 per million) and a lower cost per solved task ($0.01 against $0.81).

Which is cheaper, Kimi K3 or MiMo-V2.5?

Kimi K3 costs $3.00 per million input tokens and $15.00 per million output tokens; MiMo-V2.5 costs $0.168 and $0.336. Per solved SWE-bench Verified task, Kimi K3 costs $0.81 and MiMo-V2.5 $0.01.

Which has the bigger context window, Kimi K3 or MiMo-V2.5?

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

How many benchmarks is the Kimi K3 vs MiMo-V2.5 comparison based on?

67 benchmarks have a result for both models as of October 21, 2026. Kimi K3's coding index rests on 6 independent benchmarks 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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<iframe src="https://llmbenchmark.ai/embed/compare/kimi-k3-vs-xiaomi-mimo-v2-5" title="Kimi K3 vs MiMo-V2.5, LLMBenchmark.ai" width="100%" height="360" style="border:0;max-width:100%" loading="lazy"></iframe>
<p style="font:13px/1.4 sans-serif;margin:6px 0 0">Source: <a href="https://llmbenchmark.ai/compare/kimi-k3-vs-xiaomi-mimo-v2-5">LLMBenchmark.ai, Kimi K3 vs MiMo-V2.5</a></p>