Image Variation Getting Status 504 with Certain Images

[william-murphy]

Describe the bug
When generating an image with the image variation function, certain images seem to cause a 504 response and strange/unhelpful error message every time they are run.

To Reproduce
Use the image found at https://images.pexels.com/photos/2385654/pexels-photo-2385654.jpeg?auto=compress&cs=tinysrgb&fit=crop&dpr=1&w=1024&h=1024

file, err := os.Open(filePath) // where filePath is the path to the image above downloaded locally
if err != nil {
  return nil, fmt.Errorf("error opening real image file:%w", err)
}
defer file.Close()

response, err := client.CreateVariImage(
  context.Background(),
  openai.ImageVariRequest{
    Image:        file,
    N:                number,
    Size:           openai.CreateImageSize1024x1024,
    ResponseFormat: openai.CreateImageResponseFormatB64JSON,
  },
)
if err != nil {
  return nil, err
}

Expected behavior
The request will either work, or it will not work and return a helpful error message.

Screenshots/Logs
error, status code: 504, message: invalid character '<' looking for beginning of value

Environment (please complete the following information):

• go-openai version: v1.23.1
• Go version: go version go1.22.2 darwin/amd64
• OpenAI API version: Dalle2 ?
• OS: MacOS Sonoma 14.4.1 (23E224)