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Kimi K3 (Max)

KimiKimiOpen WeightKimi K3 License · Commercial OK

Description

Kimi K3 is Moonshot AI's flagship open Mixture-of-Experts model for long-horizon coding, knowledge work, and reasoning. It has 2.8 trillion total parameters, activates 16 of 896 experts, and combines Kimi Delta Attention, Attention Residuals, and Stable LatentMoE. The model supports a 1M-token context window, native image and video understanding, tool calling, structured output, and always-on reasoning with max thinking effort at launch.

Release Date
2026-07-16
Parameters
2.8T
Context Length
1.0M
Modalities
image, text, video

Capability Radar

44
general
74
coding
93
reasoning
72
science
70
agents
80
multimodal

Rankings

Domain#RankScoreSource
Agentic Capability42
52.0
LS
Code Ranking8
95.0
AA
General Ranking31
74.0
AA
Math Reasoning47
84.0
LB
Multimodal Ranking13
67.0
LS
Reasoning11
91.0
LB
Science12
87.0
AA

Benchmark Scores (LLM Stats)

(LLM Stats (zeroeval))

Agents

AA-Briefcase1548.00 / 3000
Program Bench77.8%SR
DECK-Bench73.5%SR
Toolathlon73.2%SR
Kimi Code Bench v272.9%SR
OfficeQA Pro63.3%SR
Job Bench52.9%SR
MLS-Bench Lite48.3%SR
PostTrainBench36.6%SR
SpreadsheetBench 234.8%SR
AutomationBench30.8%SR

Code

FrontierSWE81.2%SR
DeepSWE 1.169.0%
DeepSWE67.5%SR
SWE-Marathon42.0%SR

Math

MathVision97.8%SR

Reasoning

GPQANYU + Cohere + Anthropic (2023)93.5%SR
CharXiv-R91.3%SR
BrowseCompOpenAI (2025)91.2%SR
Terminal-Bench 2.188.3%SR
MCP Atlas84.2%SR
Humanity's Last Exam56.0%SR
APEX-Agents37.6%SR

Search

DeepSearchQA95.0%SR

Vision

OmniDocBench91.1%SR
BabyVision85.7%SR
MMMU-Pro (with tools)83.4%SR
MMMU-Pro81.6%SR
PerceptionBench58.5%SR
WorldVQA51.0%SR
ZEROBench0.41 / 100SR

AA Evaluation Indices

(Artificial Analysis)
Gpqa(NYU + Cohere + Anthropic (2023))
93.5
Lcr(Artificial Analysis)
88.7
Terminalbench V2 1
85.0
Coding Index(Artificial Analysis)
76.2
Scicode(UIUC + Argonne National Lab (2024))
59.5
Hle(Center for AI Safety + Scale AI (2025))
46.9
Tau Banking
46.0
Intelligence Index(Artificial Analysis)
43.6
Terminalbench V4 0
12.6

LLM Stats Category Scores

(LLM Stats (zeroeval))
Productivity
100
Agents
92
Reasoning
78
General
60
Physics
90
Search
90
Biology
90
Chemistry
90
Math
80
Multimodal
80
Code
70
Tool Calling
70
Vision
70
Systems
40

Pricing

Input Price$3 / 1M tokens
Output Price$15 / 1M tokens
Blended Price (3:1)$6 / 1M tokens
Cache Read Price$0.21 / 1M tokens

Speed

Tokens/sec38.7
Time to First Token2.54s
Time to Answer54.22s

Provider Price Ranking

Provider Price Ranking

34 providers

Cheapest: DeepInfraMost Expensive: Tinfoil
ProviderInputOutput
1DeepInfraCheapest
$0
$0.00001
2Fireworks
$0
$0.00002
3Together
$0
$0.00002
4Moonshot AI
$0
$0.00002
5Novita
$0
$0.00002
6Kenari
$0.85714
$8.57143
7engy
$1.95
$9.75
8Boundless
$2.3
$11.4
9Vancine
$2.4
$12
10Alibaba (China)
$2.827
$14.133
11Moonshot AI (China)
$2.9879
$14.9395
12KimiPRIMARY
$3
$15
13302.AI
$3
$15
14Alibaba
$3
$15
15Moark
$3
$15
16OpenCode Go
$3
$15
17Vivgrid
$3
$15
18GitHub Copilot
$3
$15
19OpenCode
$3
$15
20Ollama Cloud
$3
$15
21AIHubMix
$3
$15
22Requesty
$3
$15
23DigitalOcean
$3
$15
24Cortecs
$3
$14.999
25DevPass (LLM Gateway)
$3
$15
26Neuralwatt
$3
$15
27Neon
$3
$15
28EmpirioLabs AI
$3
$15
29Opper
$3
$15
30Melious
$3.19628
$15.98138
31Charm Hyper
$3.2664
$16.332
32Venice AI
$3.75
$18.75
33GreenPT
$3.762
$18.81
34Tinfoil
$4
$20

Compare pricing across different API providers for this model.

External Sources