(VB.NET) Upload an Image File to an AI Provider (OpenAI, Google, Antropic, X)

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Uploads an image file to an AI provider using the provider's File API and returns the id that can later be used to reference the file in an query. This currently works with ChatGPT and Gemini, but not other AI's. Most AI's currently don't have the ability to reference pre-uploaded image data in conversations.

Note: This example requires Chilkat v11.4.0 or greater.

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Chilkat .NET Framework

Chilkat for .NET Core

Dim success As Boolean = False

Dim ai As New Chilkat.Ai

' Can currently be "openai" or "google" because these are the only AI's that can reference pre-loaded image data by file ID.
ai.Provider = "openai"
' Use your provider's API key.
ai.ApiKey = "MY_API_KEY"

' We can upload directly from a file in the filesystem, or from a Chilkat BinData.

Dim contentType As String = "image/jpeg"
Dim localFilePath As String = "qa_data/jpg/starfish.jpg"
Dim filenameOnServer As String = "starfish.jpg"

' Upload directly from a file.
Dim file_id As String = ai.UploadFile(localFilePath,contentType)
If (ai.LastMethodSuccess = False) Then
    Debug.WriteLine(ai.LastErrorText)
    Debug.WriteLine("AI File Upload Failed.")
Else
    Debug.WriteLine("File ID: " & file_id)
    Debug.WriteLine("File uploaded.")
End If


' Upload from the contents of a Chilkat BinData
Dim bd As New Chilkat.BinData
success = bd.LoadFile(localFilePath)
If (success = False) Then
    Debug.WriteLine(bd.LastErrorText)
    Exit Sub
End If

file_id = ai.UploadFileBd(bd,filenameOnServer,contentType)
If (ai.LastMethodSuccess = False) Then
    Debug.WriteLine(ai.LastErrorText)
    Debug.WriteLine("AI File Upload Failed.")
Else
    Debug.WriteLine("File ID: " & file_id)
    Debug.WriteLine("File uploaded.")
End If