.NET Core C#

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

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Currently, OpenAI is the only AI provider that supports referencing a pre-uploaded image in a request for text generation. .NET Core C#

bool success = false;

success = false;

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

Chilkat.Ai ai = new Chilkat.Ai();

// OpenAI is currently the only AI provider that supports referencing a pre-uploaded image by file_id
// in a request for text generation.
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 an Image File to an AI Provider

// Use the file_id of the pre-uploaded file.
string file_id = "file-5CnBeuFasqNcAfti3cx4Fe";
ai.InputAddImageFileId(file_id,"application/json");

ai.InputAddText("What is in this image?");

// Ask the AI for text output.
success = ai.Ask("text");
if (success == false) {
    Debug.WriteLine(ai.LastErrorText);
    return;
}

// Get the text response.
Chilkat.StringBuilder sbResponse = new Chilkat.StringBuilder();
ai.GetOutputTextSb(sbResponse);
Debug.WriteLine(sbResponse.GetAsString());