Issue: Can’t set a Custom GPT icon—both “Create image” and manual upload show “Unknown error.”
Tried: Chrome/Edge, Incognito, home/work networks, off-VPN, phone browser, PNG/JPG (50–75 KB), and a known-good 512×512 JPG.
Path: GPT Builder → Configure → Image.
Request: Please reset/refresh my account’s icon/image permissions/flags for GPT Builder. If possible, try setting any icon on my GPT to confirm.
1 Like
This is a persistent platform-wide issue on ChatGPT.
The flow of the GPT builder with a user file is to make a call to
POST https://chatgpt.com/backend-api/files
With the size and virtual file name.
Which returns an blob storage upload ID URL and corresponding file ID.
Then the GPT site retrieves a script for form uploading, and attempts
PUT https//filesNN.oaiusercontent.com/file-....
This is returning a status 201 created. The headers of the PUT request are Accept:application/json, text/plain, but no json content is returned.
Then there is a:
POST https://chatgpt.com/backend-api/files/process_upload_stream
Which like it says, is an event stream of communication for the file ID.
With failure. Failure on either webp or png.
Generating an image, still referred to as “DALL-E”, also fails. Either by the direct option or by asking the builder.
I have the same issue. No custom or Dall-e for the GPT Icon.
Same here can we get a fix - I know it is not as important as AGI but it would be nice.