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    claude-opus-4-5-20251101

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    anthropic/claude-opus-4-5-20251101

    ChatVisionFilesToolsSystem prompt

    Context

    200K

    Max output

    64K

    Input / 1M

    $5.00

    Output / 1M

    $25.00

    Modality

    Chat

    Cutoff

    May 2025

    About this model

    Premium model combining maximum intelligence with practical performance

    Best suited for

    • Complex reasoning and analysis
    • Advanced coding and technical tasks
    • Highest quality outputs

    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.

    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

    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.