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    moonshotai/kimi-k3

    open_router/moonshotai/kimi-k3

    ChatVisionFilesToolsSystem prompt
    Use this model

    Context

    1.0M

    Max output

    944K

    Input / 1M

    $0.70

    Output / 1M

    $15.00

    Cached / 1M

    $0.32

    Cutoff

    unknown

    About this model

    Kimi K3, Moonshot AI's 2.8T-parameter open-weight multimodal reasoning model, accessed via OpenRouter. Strong at large-repo coding, tool use, debugging against images/logs/tests, and long-horizon agentic workflows.

    Best suited for

    • Complex coding and debugging
    • Tool use and agentic workflows
    • Long-context multimodal reasoning

    Capabilities

    Vision

    Accepts images alongside text in the same message.

    Files

    Accepts file attachments — PDFs, transcripts, spreadsheets.

    Tools

    Native function calling, so agents can invoke your endpoints.

    System prompt

    Honours a dedicated system role, separate from the user turn.

    Supported parameters

    max_tokensMax Tokens Limit

    Specifies the maximum number of text units (tokens) allowed in a response, limiting its length.

    parallel_tool_calls

    Enables parallel execution of tools, allowing multiple tools to run simultaneously.

    response_type

    Defines the format or type of the generated response.

    stream

    Sends the response in real-time as it's being generated.

    tool_choice

    Decides whether to use tools or just the model for generating responses.

    tools

    Lists tool definitions or capabilities available to the model.

    Use this model

    OpenAI-SDK compatible, with gateway fallback and routing across providers.

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    Pricing & provider details

    Open Router logo

    Open Router

    open_router/moonshotai/kimi-k3

    Input · per 1M
    $0.70
    Output · per 1M
    $15.00
    Cached input · per 1M
    $0.32
    Context window
    1,048,576 tokens
    Max output
    943,718 tokens
    Knowledge cutoff
    unknown
    Auto-router
    Not supported

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