Go

Multimodal Input: File Data

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Demonstrates sending a request that includes both text and PDF file data for the AI to analyze.

Note: At the time of writing this example, xAI, Perplexity, and DeepSeek do not have the ability to accept non-image multimodal data or URLs.

Go

    success := false

    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    ai := chilkat.NewAi()

    // The provider can be "openai", "google", or "claude".
    // At the time of writing this example, "deepseek", "xai", and "perplexity" do not have the ability to process non-image multimodal inputs.
    // Support for additional providers will be added in future versions of Chilkat.
    ai.SetProvider("claude")

    // Use your provider's API key.
    ai.SetApiKey("MY_API_KEY")

    // Choose a model.
    ai.SetModel("claude-opus-4-1-20250805")

    // Add both text input, and PDF file data.
    ai.InputAddText("What is in this file?")

    bd := chilkat.NewBinData()
    // We're passing a relative local file path here.. (relative the the app's current working directory)
    success = bd.LoadFile("qa_data/pdf/shakespeare.pdf")
    if success == false {
        fmt.Println(bd.LastErrorText())
        ai.DisposeAi()
        bd.DisposeBinData()
        return
    }

    // Provide the filename in the 1st argument.  The file extension is important to indicate the type of file.
    ai.InputAddFileData("shakespeare.pdf",bd,"")

    // Ask the AI for text output.
    success = ai.Ask("text")
    if success == false {
        fmt.Println(ai.LastErrorText())
        ai.DisposeAi()
        bd.DisposeBinData()
        return
    }

    // Get the text response.
    sbResponse := chilkat.NewStringBuilder()
    ai.GetOutputTextSb(sbResponse)
    fmt.Println(*sbResponse.GetAsString())

    // -------------------------------------------------------------
    // The response is in markdown format.
    // Also see Markdown to HTML Conversion Examples.
    // -------------------------------------------------------------

    // Sample output:

    // This PDF file contains a famous quote from William Shakespeare's "Romeo and Juliet". The quote appears twice on the page:
    // 
    // "These violent delights have violent ends
    // And in their triumph die, like fire and powder,
    // Which as they kiss consume. The sweetest honey
    // Is loathsome in his own deliciousness
    // And in the taste confounds the appetite.
    // Therefore love moderately; long love doth so;
    // Too swift arrives as tardy as too slow."
    // 
    // The file also includes a portrait image of William Shakespeare. This particular quote is spoken by Friar Lawrence in the play, warning about the dangers of passionate, 
    // immoderate love - suggesting that love that burns too intensely tends to burn out quickly, just as fire and gunpowder consume each other when they meet.

    ai.DisposeAi()
    bd.DisposeBinData()
    sbResponse.DisposeStringBuilder()