GLM 5.2 is live! Opus-level intelligence at open-source rates. Pay per token on serverless. Try it today.

Model Library
/Moonshot AI/Kimi K2 Instruct
mooshot

Kimi K2 Instruct

Ready
model path:accounts/fireworks/models/kimi-k2-instruct

Kimi K2 is a state-of-the-art mixture-of-experts (MoE) language model with 32 billion activated parameters and 1 trillion total parameters. Trained with the Muon optimizer, Kimi K2 achieves exceptional performance across frontier knowledge, reasoning, and coding tasks while being meticulously optimized for agentic capabilities.

Kimi K2 Instruct API Features

Fine-tuning

Docs

Kimi K2 Instruct can be customized with your data to improve responses. Fireworks uses LoRA to efficiently train and deploy your personalized model

On-demand Deployment

Docs

On-demand deployments allow you to use Kimi K2 Instruct on dedicated GPUs with Fireworks' high-performance serving stack with high reliability and no rate limits.

Metadata

State
Ready
Created on
7/11/2025
Kind
Base model
Provider
Moonshot AI

Specification

Calibrated
No
Mixture-of-Experts
Yes
Parameters
1.02T

Supported Functionality

Fine-tuning
Supported
Serverless
Not supported
Context Length
131k tokens
Function Calling
Supported
Embeddings
Not supported
Rerankers
Not supported
Support image input
Not supported