> Kimi K2 is an open-weights AI model from Moonshot, released 11 Jul 2025. Index score 132 (GPT-4 = 100), rank 112 of 229 ranked models. API price $0.57 in / $2.3 out per million tokens, 131K context.

[Models](https://themodelindex.org/models/) /[Moonshot](https://themodelindex.org/labs/moonshot/)

# Kimi K2

Moonshot

Released 11 Jul 2025

Open

[Compare](https://themodelindex.org/compare/kimi-k2-vs-gpt-5/) [Announcement](https://www.kimi.com/en/blog/kimi-k2)

132120–144

Index score

#112 · provisional, limited data

1/ 8

Core tests taken

1 of 6 areas · plus 6 anchor tests

−15

Versus the frontier at release

best then: o3

Replaced by [Kimi K2 (Sep 2025)](https://themodelindex.org/models/kimi-k2-sep-2025/)

$0.57/ $2.3

Price per million tokens

input / output, list price

131K

Context window

tokens it reads at once

## Where it sits · on the frontier

_Chart: Model Index score of every scored model since late 2022, with the best closed and best open model over time_

o1 reached this score 7 months earlier.

## Test results · by area · tick = best by any model

Show 4 anchor tests

Reasoning & knowledge

evidence

GPQA Diamond

no result

Humanity's Last Exam

no result

Maths

no evidence yet

FrontierMath T1-3

no result

Coding

evidence

SWE-bench Verified

no result

Terminal-Bench

28%

Agents

no evidence yet

APEX-Agents

no result

Novel problems

no evidence yet

ARC-AGI-2

no result

Long tasks

no evidence yet

METR time horizon

no result

Independent results from the Epoch AI benchmarking hub, best reasoning setting. The core tests are shown here; anchor tests also inform the score and can be shown above.

## What others say · rank on each leaderboard

The Model Index

independent tests, our method

#112

of 219 · 132

Epoch Capabilities Index

overall capability from many benchmarks

#72

of 239 · 146.0

Further left is better. Leaderboards measure different things: LMArena is people voting blind between two answers, the others are test scores. Click any row for the source.

## Best at · top three among current models

Replaced by Kimi K2 (Sep 2025); it no longer leads any category among current models.

Where this model places in the top three of today's models, on category leaderboards and on our core tests.

## Where to use it · prices checked 1 Oct 2026

#### From the lab

Kimi

app · subscription

↗

Moonshot API

API

↗

#### API providers · 1 · per million tokens, in / out

N

Novita

$0.57 / $2.3 · fp8

cheapest

#### Run it yourself

🤗

Official weights

moonshotai/Kimi-K2-Instruct

↗

Provider prices come from OpenRouter's live listing; going direct to a provider can differ. Subscriptions are the lab's own apps.

## Facts and sources

Released

11 Jul 2025

Announcement

[kimi.com ↗](https://www.kimi.com/en/blog/kimi-k2)

Release entry

Kimi K2

Scored as

Kimi K2 (Jul 2025)

Artificial Analysis index

–

Output speed

–

Hugging Face

[moonshotai/Kimi-K2-Instruct ↗](https://huggingface.co/moonshotai/Kimi-K2-Instruct)

## Moonshot releases · around this one

Kimi Chat

Closed

9 OCT 2023

Kimi k1.5

Closed

20 JAN 2025

Kimi K2

Open

11 JUL 2025

index 132

Kimi Linear 48B-A3B

Open

30 OCT 2025

Kimi K2 Thinking

Open

6 NOV 2025

index 144

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Source: https://themodelindex.org/models/kimi-k2/ · The Model Index · data as of 2026-10-01