Classic ASP

Referencing a Pre-Uploaded File by file_id in an AI Request

Some AI proviers have a Files API that lets you upload content once and then reference it later in generation requests using a file_id. This is especially useful for large documents, reuse across multiple prompts, or keeping inputs structured and separate from your prompt text.

This example demonstrates how to use a file_id in a request.

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Classic ASP

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
success = 0

success = 0

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

set ai = Server.CreateObject("Chilkat.Ai")

' The provider can be "openai", "google", "claude", "mistral", "deepseek", "xai", or any provider
' that supports referencing pre-uploaded files by a file_id (or file uri).
ai.Provider = "openai"

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

' Choose a model.
ai.Model = "gpt-5-mini"

' See the following example showing how to upload a file
' Upload a File to an AI Provider (OpenAI, Google, Antropic, X)

' Use the file_id of the pre-uploaded file.
file_id = "file-5G2xncrEiHbVfYPRpFgP9c"
success = ai.InputAddFileId(file_id,"application/json")

success = ai.InputAddText("Explain why Hamlet delays taking revenge, using only evidence from the file.")

' Ask the AI for text output.
success = ai.Ask("text")
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( ai.LastErrorText) & "</pre>"
    Response.End
End If

' Get the text response.
set sbResponse = Server.CreateObject("Chilkat.StringBuilder")
success = ai.GetOutputTextSb(sbResponse)
Response.Write "<pre>" & Server.HTMLEncode( sbResponse.GetAsString()) & "</pre>"

%>
</body>
</html>