Unsupported image file uploaded. Ensure the image format is valid and supported.

The 400 error in the OpenAI API when uploading an image can be triggered by several reasons:

Image Size and Format

• The image may exceed the 20 MB size limit or be in an unsupported format. OpenAI only supports images in png, jpeg, gif, and webp formats.

Image Validity

• The image itself might be invalid or corrupted, even if it meets the size and format criteria. This could be due to issues during the upload or encoding process.

Configuration and Request Parameters

• The API request might be malformed, such as incorrect headers, invalid API keys, or improper encoding of the image data. This includes ensuring the Authorization field and other request parameters are correctly set.

Network and Server Issues

• There could be network or server-side issues that prevent the request from being processed correctly, such as packet loss or high latency, though this is less likely to be directly related to image uploads.