Zig Requires Chilkat v11.2.0+

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.

Zig

const std = @import("std");
const chilkat = @import("chilkat");

pub fn main(init: std.process.Init) !void {
    const alloc = init.arena.allocator();

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

    const ai = try chilkat.Ai.init();
    defer ai.deinit();

    // 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-5");

    // Add both text input, and PDF file data.
    ai.inputAddText("What is in this file?") catch {};

    const bd = try chilkat.BinData.init();
    defer bd.deinit();
    // We're passing a relative local file path here.. (relative the the app's current working directory)
    bd.loadFile("qa_data/pdf/shakespeare.pdf") catch {
        std.debug.print("{s}\n", .{try bd.getLastErrorText(alloc)});
        return;
    };

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

    // Ask the AI for text output.
    ai.ask("text") catch {
        std.debug.print("{s}\n", .{try ai.getLastErrorText(alloc)});
        return;
    };

    // Get the text response.
    const sb_response = try chilkat.StringBuilder.init();
    defer sb_response.deinit();
    ai.getOutputTextSb(sb_response) catch {};
    std.debug.print("{s}\n", .{try sb_response.getAsString(alloc)});

    // -------------------------------------------------------------
    // 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.
}