DocsSecuritySign in
    Get started
    Moonshot logoMoonshot

    kimi-k3

    moonshot/kimi-k3

    ChatVisionToolsSystem prompt
    Use this model

    Context

    1.0M

    Max output

    1.0M

    Input / 1M

    $3.00

    Output / 1M

    $15.00

    Cached / 1M

    $0.30

    Cutoff

    Jan 2026

    About this model

    Kimi K3 is Moonshot AI's most capable flagship model with 2.8 trillion parameters, native visual understanding, and a 1M-token context window. Designed for frontier intelligence scenarios including software engineering, knowledge work, and deep reasoning.

    Best suited for

    • Frontier intelligence and complex reasoning
    • Software engineering and coding
    • Long-context document analysis (1M tokens)
    • Multimodal tasks with image and video understanding
    • Knowledge work and research
    • Agentic workflows

    Capabilities

    Vision

    Accepts images alongside text in the same message.

    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_tokens

    Specifies the maximum number of tokens allowed in the response.

    tools

    Lists tool definitions or capabilities available to the model.

    tool_choice

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

    response_type

    Defines the format of the generated response.

    stream

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

    Use this model

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

    Other Moonshot models

    ModelContextMax outputInputOutputCapabilities
    kimi-k3.1-pro-highspeed

    Chat

    		1.0M—$4.00$20.00Vision, Tools, System prompt
    kimi-k3.1-pro

    Chat

    		1.0M—$2.00$10.00Vision, Tools, System prompt
    kimi-k2.7-code-highspeed

    Chat

    		262K262K$1.90$8.00Vision, Files, Tools, System prompt
    kimi-k2.7-code

    Chat

    		262K262K$0.95$4.00Vision, Files, Tools, System prompt
    kimi-k2.6

    Chat

    		262K262K$0.95$4.00Vision, Files, Tools, System prompt

    Pricing & provider details

    Moonshot logo

    Moonshot

    moonshot/kimi-k3

    Input · per 1M
    $3.00
    Output · per 1M
    $15.00
    Cached input · per 1M
    $0.30
    Context window
    1,048,576 tokens
    Max output
    1,048,576 tokens
    Knowledge cutoff
    Jan 2026
    Auto-router
    Not supported

    Start building today

    Route kimi-k3 — and every other model in the catalogue — through one endpoint, with failover built in.

    Get started freeAll models