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DeepSeek-V3 (Mar 2025)

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Kimi K3

Moonshot AI's Kimi K3 is a very large model that can read text, images and video, free to download for research and non-commercial use and aimed at long coding and knowledge-work tasks.

Release page →

The basics

Released

Mar 24, 2025
Jul 16

What it does

Text and chat: Writes, answers questions and holds a conversation.Code: Writes, explains and fixes code.Thinks first: Can reason step by step before it answers: slower, but better at maths, code and tricky questions.
Text and chat: Writes, answers questions and holds a conversation.Thinks first: Can reason step by step before it answers: slower, but better at maths, code and tricky questions.Sees images: Understands pictures, screenshots and charts you share with it.Watches video: Understands video clips you share with it.

Knowledge cutoff

The latest events it learned about

Not published
Not published

Download

FreeOpen weights, licence has limits
FreeOpen weights, non-commercial licence

Where to use it

DeepSeek's app: DeepSeek ↗
Moonshot AI's app: Kimi ↗

Price and limits, for developers

Input

Per million tokens

$0.32Cheaper
$3.00

Output

Per million tokens

$0.89Cheaper
$15.00

Cached input

Per million tokens

Not listed
$0.30

Context window

How much it takes in at once

164K tokens about 120,000 words
1.05M tokens about 790,000 wordsBigger

Longest answer

16K tokens about 12,000 words
Not listed

How they score

Combined test score

Epoch Capabilities Index · Epoch AI

135#131 of 235
159#21 of 235Higher

Kimi K3 scores 23 points higher, a big step.

Chat answers, by people's votes

LMArena text, adjusted for style · LMArena

Not ranked
1,487#16 of 86

Only Kimi K3 is in this ranking, which lists the most-voted models.

Building apps, by people's votes

LMArena WebDev · LMArena

Not ranked
1,657#15 of 85

Only Kimi K3 is in this ranking, which lists the most-voted models.

Green marks the better of the two on each row, red the other. Rows where one side isn't listed, or where the gap is too close to call, stay plain.

Popular comparisons

Not sure where to start? Which AI should I use? gives a pick for what you want to do. How to read AI rankings explains the numbers.

Rankings from LMArena and Epoch AI, both CC BY 4.0, updated . Developer prices, context windows and knowledge cutoffs from the labs' own listings on models.dev and from OpenRouter. The app links go to each maker's own app when no source says exactly where the model is available.

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