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microsoft--agent-framework/dotnet/samples/02-agents/AgentProviders/foundry/Agent_Step10_UsingImages
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Using Images with the Responses API

This sample demonstrates how to use image multi-modality with an agent.

What this sample demonstrates

  • Loading images using DataContent.LoadFromAsync
  • Sending images alongside text to the agent
  • Streaming the agent's image analysis response
  • No server-side agent creation or cleanup required

Prerequisites

  • .NET 10 SDK or later
  • Microsoft Foundry service endpoint and a vision-capable model deployment (e.g., gpt-5.4-mini)
  • An authenticated Azure identity (for example, sign in with az login)

Set the following environment variables:

$env:FOUNDRY_PROJECT_ENDPOINT="https://your-foundry-service.services.ai.azure.com/api/projects/your-foundry-project"
$env:FOUNDRY_MODEL="gpt-5.4-mini"

Run the sample

cd dotnet/samples/02-agents/AgentProviders/foundry
dotnet run --project .\Agent_Step10_UsingImages