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Model Library
/Moonshot AI/Kimi K2.5
accounts/fireworks/models/kimi-k2p5

    Kimi K2.5 is Moonshot AI's flagship agentic model and a new SOTA open model. It unifies vision and text, thinking and non-thinking modes, and single-agent and multi-agent execution into one model. Fireworks enables users to control the reasoning behavior of the Kimi K2.5 model and inspect its reasoning history for greater transparency.

    Kimi K2.5 API Features

    Fine-tuning

    Docs

    Kimi K2.5 can be customized with your data to improve responses. Fireworks uses LoRA to efficiently train and deploy your personalized model

    Serverless

    Docs

    Kimi K2.5 is available via Fireworks' serverless API, where you pay per token. There are several ways to call the Fireworks API, including Fireworks' Python client, the REST API, or OpenAI's Python client.

    On-demand Deployment

    Docs

    On-demand deployments allow you to use Kimi K2.5 on dedicated GPUs with Fireworks' high-performance serving stack with high reliability and no rate limits.

    Available Serverless

    Run queries immediately, pay only for usage

    $0.60 / $0.10 / $3.00
    Per 1M Tokens (input/cached input/output)

    Metadata

    State
    Ready
    Created on
    1/27/2026
    Kind
    Base model
    Provider
    Moonshot AI

    Specification

    Calibrated
    Yes
    Mixture-of-Experts
    Yes
    Parameters
    1.02T

    Supported Functionality

    Fine-tuning
    Supported
    Serverless
    Supported
    Context Length
    262k tokens
    Function Calling
    Supported
    Embeddings
    Not supported
    Rerankers
    Not supported
    Support image input
    Supported