Forum Discussion
HarshitS1820
Jun 21, 2024Copper Contributor
Azure Open AI
Hi Team, I have been trying to use gpt-4o capability on azure open-ai to pass base64 encoded image. But I m getting this response: {"requestPayload":null,"meta":{"blocking":true},"status":"complet...
Kidd_Ip
Jul 29, 2026MVP
When using Azure OpenAI GPT‑4o with image input, the service does not accept raw base64 strings directly in the image_url field. The error you are seeing (Error creating dev tunnel / “base64 string incomplete or corrupted”) typically occurs because the payload format does not match the expected schema.
https://learn.microsoft.com/en-us/azure/foundry/openai/reference