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    claude-sonnet-4-5-20250929

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    anthropic/claude-sonnet-4-5-20250929

    ChatVisionToolsSystem prompt

    Context

    200K

    Max output

    64K

    Input / 1M

    $3.00

    Output / 1M

    $15.00

    Modality

    Chat

    Cutoff

    Jan 2023

    About this model

    Highest intelligence across most tasks with exceptional agent and coding capabilities

    Best suited for

    • High-throughput enterprise workloads, document processing, knowledge worker tools, and large-scale applications balancing quality, performance, and cost.

    Built-in tools

    Web searchGtwy web search

    Hosted by the gateway — enable them per request without wiring your own endpoint.

    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

    creativity_level

    Controls the creativity of responses. Higher values (e.g., 0.7) increase creativity; lower values (e.g., 0.2) make responses more predictable.

    max_tokensMax Tokens Limit

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

    top_p

    Anthropic Claude computes the cumulative distribution over all the options for each subsequent token in decreasing probability order and cuts it off once it reaches a particular probability specified by top_p. You should alter either temperature or top_p, but not both.

    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 or type of the generated response.

    stream

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