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Model index
Moonshot AI·Kimi

Kimi K2

A 1T-total, 32B-active open MoE focused on agentic tool use and coding.

LegacyLanguageCodingAgentOpen weights
MODEL NUMBER033
First public date
2025-07-11
Organization
Moonshot AI
Family
Kimi
01

Specifications

Only published specifications are shown.

Total parameters
1T
Active parameters
32B
Architecture
MoE
Context
128,000 tokens
Input modalities
Text
Open weights
Yes
License
Modified MIT
Status
Legacy
02

Overview

Release dates

— Kimi K2 launched as an open 1T MoE agent model. ↗

Why it mattered

K2 paired trillion-scale MoE with an open agent model and demonstrated large-scale training with the Muon optimizer.

03

Specifications alongside predecessor

Compared with Kimi K1.5 ↗

PreviousKimi K1.5— · — ctx
CurrentKimi K21T · 128K ctx
04

Architecture & capabilities

Model capabilities

AgentCodingTool use
05

Release history

Open weights

Kimi K2 launched as an open 1T MoE agent model.

View source
06

Related models

Select a card to view the related model.

PredecessorKimi K1.5View details →SuccessorKimi K3View details →VariantKimi K2 ThinkingView details →SuccessorKimi K2.5View details →
07

Sources

01
Kimi K2: Open Agentic IntelligenceMoonshot AI · Published 2025-07-11
Official · Verified
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