(Ruby) Multimodal Input: File Data

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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.

Note: This example requires Chilkat v11.2.0 or greater.

Chilkat Ruby Downloads install from rubygems.org gem install chilkat or download... Ruby Library for Windows, MacOS, Linux, Alpine Linux

require 'chilkat'

success = false

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

ai = Chilkat::CkAi.new()

# 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.put_Provider("claude")

# Use your provider's API key.
ai.put_ApiKey("MY_API_KEY")

# Choose a model.
ai.put_Model("claude-opus-4-1-20250805")

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

bd = Chilkat::CkBinData.new()
# 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)
    print bd.lastErrorText() + "\n";
    exit
end

# 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)
    print ai.lastErrorText() + "\n";
    exit
end

# Get the text response.
sbResponse = Chilkat::CkStringBuilder.new()
ai.GetOutputTextSb(sbResponse)
print sbResponse.getAsString() + "\n";

# -------------------------------------------------------------
# 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.