VB.NET

Multimodal Input: Image Data

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Demonstrates sending a request that includes both text and image data for the AI to analyze. VB.NET

Dim success As Boolean = False

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

Dim ai As New Chilkat.Ai

' The provider can be "openai", "google", "claude", "deepseek", "xai", or "perplexity".
' Support for additional providers will be added in future versions of Chilkat.
' xAI (Grok) will be used here..
ai.Provider = "xai"

' Use your provider's API key.
ai.ApiKey = "MY_API_KEY"

' Choose a model.
ai.Model = "grok-4"

' Add both text input, and image data
ai.InputAddText("Describe what you see in the following image.")

Dim bd As New Chilkat.BinData
' We're passing a relative local file path here.. (relative the the app's current working directory)
success = bd.LoadFile("qa_data/jpg/starfish.jpg")
If (success = False) Then
    Debug.WriteLine(bd.LastErrorText)
    Exit Sub
End If


ai.InputAddImageData(bd,"")

' Ask the AI for text output.
success = ai.Ask("text")
If (success = False) Then
    Debug.WriteLine(ai.LastErrorText)
    Exit Sub
End If


' Get the text response.
Dim sbResponse As New Chilkat.StringBuilder
ai.GetOutputTextSb(sbResponse)
Debug.WriteLine(sbResponse.GetAsString())

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

' Sample output:

' The image depicts a small, bright orange starfish (also known as a sea star) with five symmetrical arms radiating from a central disc. 
' It has a textured, bumpy surface that gives it a realistic, almost spiky appearance, and there's a small hole or indentation at the center, 
' which might represent the mouth or a natural feature. The starfish is shown against a plain white background, and it appears to be a simple, 
' illustrative or clipart-style graphic rather than a photograph.