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Kimi K3 vs Mistral Large

Updated October 21, 2026. 37 benchmarks have a result for both. Coding is ranked on the Vibe Coding Index; every other board is shown as published.

Replace Kimi K3 Replace Mistral Large
Kimi K3Moonshot AI
Coding
62.3
Overall
43.6
Output $/M
$15.00
37
Mistral LargeMistral AI
Coding
No data
Overall
5.8
Output $/M
$6.00
0
vs boards won of 37 shared

Decision reading

Only Kimi K3 has a coding score, 62.3 on the Vibe Coding Index; Mistral Large has none, so the two cannot be ranked on coding.

Mistral Large has the edge where output tokens cost 2.5x less.

Model AKimi K3Moonshot AI62.3/1006 independent benchmarks$0.81 per solved taskModel BMistral LargeMistral AINot benchmarkedNo coding benchmarkNo cost per solved task
Shared results
37
Kimi K3 only
80
Mistral Large only
7
Like-for-like categories
6 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
Kimi K3 62.3 from 6 benchmarks, Mistral Large not benchmarked.
Widest category
Reasoning, 46.2 points apart on average over 6 shared benchmarks.
Widest single gap
GPQA Diamond (Artificial Analysis run): Kimi K3 93.5% against Mistral Large 35.1%, 58.4 points apart on a 0 to 100 scale.
Output price
Kimi K3 $15.00 against Mistral Large $6.00 per million output tokens, 2.5x apart.
Context window
Kimi K3 takes 1.05M tokens, Mistral Large 128K.

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 K3BarsMistral LargeTies
Coding30
Intelligence20
Reasoning60
Math20
Knowledge60
General180
All shared boards370
CodingLike-for-likeSix of these boards feed the Vibe Coding Index30
Coding benchmarks for Kimi K3 and Mistral Large
BenchmarkKimi K3Mistral LargeLeader
LiveBench coding59.3%Not measuredOnly Kimi K3 measured
LMArena WebDev1655Not measuredOnly Kimi K3 measured
AA Coding Index76.2Not measuredOnly Kimi K3 measured
LiveCodeBench (Vals AI)87.2%37.1%Kimi K3
SWE-bench Verified (Vals AI)93.4%Not measuredOnly Kimi K3 measured
Terminal-Bench 4 (Vals AI)17.2%Not measuredOnly Kimi K3 measured
Vibe Code Bench (Vals AI)85.0%Not measuredOnly Kimi K3 measured
Code migration (Vals AI)16.1%Not measuredOnly Kimi K3 measured
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%Not measuredOnly Kimi K3 measured
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
LiveCodeBench (Artificial Analysis run)Not measured17.8%Only Mistral Large measured
SciCode59.5%Not measuredOnly Kimi K3 measured
FrontierCode44.2%Not measuredOnly Kimi K3 measured
FrontierSWE25.9%Not measuredOnly Kimi K3 measured
WeirdML82.6%Not measuredOnly Kimi K3 measured
ALE-Bench1524.5Not measuredOnly Kimi K3 measured
LMArena Text: coding15081275Kimi K3
LMArena Text: software and IT14991274Kimi K3
LMArena WebDev: React1670Not measuredOnly Kimi K3 measured
LMArena WebDev: HTML1644Not measuredOnly Kimi K3 measured
LMArena WebDev: from an image1579Not measuredOnly Kimi K3 measured
Neither model has a result on the other 13 boards here
IntelligenceLike-for-likePublic boards, shown as published, kept out of the index20
Intelligence benchmarks for Kimi K3 and Mistral Large
BenchmarkKimi K3Mistral LargeLeader
AA Intelligence Index43.65.8Kimi K3
Epoch Capabilities Index157.9122.1Kimi K3
Agentic workDirectional onlyPublic boards, shown as published, kept out of the index24 boards, none shared
Agentic work benchmarks for Kimi K3 and Mistral Large
BenchmarkKimi K3Mistral LargeLeader
AA Agentic Index50.0Not measuredOnly Kimi K3 measured
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 apps1268Not measuredOnly Kimi K3 measured
Design Arena: agents building Android apps1256Not 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: spreadsheets1054Not 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%Not measuredOnly Kimi K3 measured
Tax Agent Bench (Vals AI)33.4%Not measuredOnly Kimi K3 measured
Legal Research Bench (Vals AI)46.1%Not measuredOnly Kimi K3 measured
Harvey's Legal Agent Benchmark (Vals AI)12.9%Not measuredOnly Kimi K3 measured
Excel Modeling Benchmark (Vals AI)66.7%Not measuredOnly Kimi K3 measured
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
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 15 boards here
ReasoningLike-for-likePublic boards, shown as published, kept out of the index60
Reasoning benchmarks for Kimi K3 and Mistral Large
BenchmarkKimi K3Mistral LargeLeader
GPQA Diamond92.9%47.7%Kimi K3
LiveBench reasoning90.7%Not measuredOnly Kimi K3 measured
MMMU Pro (Vals AI)88.2%Not measuredOnly Kimi K3 measured
GPQA Diamond (Artificial Analysis run)93.5%35.1%Kimi K3
Humanity's Last Exam (Artificial Analysis run)46.9%3.5%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 prompts14951257Kimi K3
LMArena Text: expert15201208Kimi K3
LMArena Text: hard prompts in English14961268Kimi K3
Neither model has a result on the other 7 boards here
MathLike-for-likePublic boards, shown as published, kept out of the index20
Math benchmarks for Kimi K3 and Mistral Large
BenchmarkKimi K3Mistral LargeLeader
AIMENot measured9.2%Only Mistral Large measured
MATH 500 (Vals AI)Not measured74.4%Only Mistral Large measured
MGSM (Vals AI)Not measured87.2%Only Mistral Large measured
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%Not measuredOnly Kimi K3 measured
LMArena Text: math14941261Kimi K3
LMArena Text: mathematical work15051257Kimi K3
Neither model has a result on the other 4 boards here
KnowledgeLike-for-likePublic boards, shown as published, kept out of the index60
Knowledge benchmarks for Kimi K3 and Mistral Large
BenchmarkKimi K3Mistral LargeLeader
MMLU Pro88.0%69.7%Kimi K3
LegalBench (Vals AI)86.2%Not measuredOnly Kimi K3 measured
CorpFin (Vals AI)71.6%Not measuredOnly Kimi K3 measured
TaxEval (Vals AI)75.7%63.8%Kimi K3
MortgageTax (Vals AI)66.3%Not measuredOnly Kimi K3 measured
MedQA (Vals AI)Not measured76.2%Only Mistral Large measured
MedCode (Vals AI)49.4%Not measuredOnly Kimi K3 measured
MMLU Pro (Artificial Analysis run)Not measured51.5%Only Mistral Large measured
SimpleQA Verified50.6%Not measuredOnly Kimi K3 measured
MMLUNot measured68.8%Only Mistral Large measured
LMArena Text: science15081260Kimi K3
LMArena Text: medicine and healthcare14891255Kimi K3
LMArena Text: legal and government15031275Kimi K3
LMArena Text: business and finance14701238Kimi K3
Neither model has a result on the other 3 boards here
Web designDirectional onlyPublic boards, shown as published, kept out of the index8 boards, none shared
Web design benchmarks for Kimi K3 and Mistral Large
BenchmarkKimi K3Mistral LargeLeader
Design Arena: websites1335Not measuredOnly Kimi K3 measured
Design Arena: UI components1344Not measuredOnly Kimi K3 measured
Design Arena: game dev1360Not measuredOnly Kimi K3 measured
Design Arena: data viz1350Not measuredOnly Kimi K3 measured
Design Arena: 3D1388Not measuredOnly Kimi K3 measured
Design Arena: all code categories1361Not measuredOnly Kimi K3 measured
Design Arena: SVG1302Not measuredOnly Kimi K3 measured
LiveBench design77.2%Not measuredOnly Kimi K3 measured
Neither model has a result on the other 1 board here
GeneralLike-for-likePublic boards, shown as published, kept out of the index180
General benchmarks for Kimi K3 and Mistral Large
BenchmarkKimi K3Mistral LargeLeader
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%Not measuredOnly Kimi K3 measured
MedScribe (Vals AI)88.0%Not measuredOnly Kimi K3 measured
Vals Multimodal Index73.4%Not measuredOnly Kimi K3 measured
Long context reasoning (AA-LCR)88.7%Not measuredOnly Kimi K3 measured
DTBench91.2%60.8%Kimi K3
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 Text14761265Kimi K3
LMArena Text: instruction following14851249Kimi K3
LMArena Text: creative writing14571242Kimi K3
LMArena Text: English14811284Kimi K3
LMArena Text: non-English14661235Kimi K3
LMArena Text: Chinese15291239Kimi K3
LMArena Text: German14901242Kimi K3
LMArena Text: Japanese14941170Kimi K3
LMArena Text: Korean14601202Kimi K3
LMArena Text: French14921325Kimi K3
LMArena Text: Spanish14721268Kimi K3
LMArena Text: Russian14851252Kimi K3
LMArena Text: Polish14581157Kimi K3
LMArena Text: multi-turn14891260Kimi K3
LMArena Text: longer queries14941261Kimi K3
LMArena Text: writing and language14711261Kimi K3
LMArena Text: entertainment and media14531230Kimi K3
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 Kimi K3 and Mistral Large
BenchmarkKimi K3Mistral LargeLeader
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
Mistral Large$0.0050Fits in one request

Mistral Large costs less

Repository review

50K input + 3K output tokens

Kimi K3$0.195Fits in one request
Mistral Large$0.118Fits in one request

Mistral Large costs less

Agent loop

200K input + 10K output tokens

Kimi K3$0.750Fits in one request
Mistral Large$0.460Exceeds the context window

Mistral Large 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 Mistral Large
SpecificationMoonshotAI Kimi K3Mistral Large
MakerMoonshot AIMistral AI
WeightsOpen weightsNo public weights listed
ReleasedJuly 16, 2026February 26, 2024
Context window1.05M128K
Input $/Mtok$3.00$2.00
Output $/Mtok$15.00$6.00
Coding index62.3Not benchmarked
Independent measurements behind it60
Cost per solved task$0.81Not computable
SourceOpenRouter listingOpenRouter listing

Questions

Is Kimi K3 better than Mistral Large for coding?

Only Kimi K3 has a coding score, 62.3 on the Vibe Coding Index; Mistral Large has none, so the two cannot be ranked on coding. Mistral Large has the edge where output tokens cost 2.5x less.

Which is cheaper, Kimi K3 or Mistral Large?

Kimi K3 costs $3.00 per million input tokens and $15.00 per million output tokens; Mistral Large costs $2.00 and $6.00. Cost per solved task is known for Kimi K3 only.

Which has the bigger context window, Kimi K3 or Mistral Large?

Kimi K3, with 1.05M tokens against 128K.

How many benchmarks is the Kimi K3 vs Mistral Large comparison based on?

37 benchmarks have a result for both models as of October 21, 2026. Kimi K3's coding index rests on 6 independent benchmarks and Mistral Large's on 0. Where only one model has a result, the page says so instead of naming a winner.

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