I'm unable to upload files in Prism

Welcome to the forum!

Thanks for repoting.

I have not used OpenAI Prism before but wanted to verify if the problem is reporoducable.

Using OpenAI Prism via an internent browser with URL starting wtih https://prism.openai.com/?u=

in the middle panel at the bottom find

when clicking shows

I do not get the option to upload. However I am also not signed-in to an OpenAI account.

After signing-in

Using Windows 11, clicked on a image in this forum,

Collection of GPT-image-generator 2.0 issues, bugs, and work-around tips (check first post) Prompting

[image] (source) One observation that may help in understanding how the gtp-image-2 model operates is to examine the background of the coffee machine image—specifically the black backdrop behind the mechanical components. There appear to be layered, interconnected rectangles, each precisely shaped to contain distinct elements such as pipes, presses, and valves. Viewed through the lens of depth-first construction, this suggests a compositional process in which structured regions are defined …

then pasted it into the Chat box.

No errors reported.

Then deleted the image from the Chat box.

Copied the image to my Desktop as Coffee machine.png

Then using "Upload files & photos`

No errors reported.

Can you give step by step instructions so we can try to reproduce the problem.

Also use F12 key to open the developer tools and look for errors reported.

In doing the same using Chrome, these are noted.

/api/project-files/upload-plan:1  Failed to load resource: the server responded with a status of 502 ()
b63323c505d5b182.js:1 Cross-Origin-Opener-Policy policy would block the window.closed call.
(anonymous) @ b63323c505d5b182.js:1
b63323c505d5b182.js:1 Cross-Origin-Opener-Policy policy would block the window.closed call.
(anonymous) @ b63323c505d5b182.js:1
b63323c505d5b182.js:1 Cross-Origin-Opener-Policy policy would block the window.closed call.
(anonymous) @ b63323c505d5b182.js:1
b63323c505d5b182.js:1 Cross-Origin-Opener-Policy policy would block the window.closed call.
(anonymous) @ b63323c505d5b182.js:1
b63323c505d5b182.js:1 Cross-Origin-Opener-Policy policy would block the window.closed call.
(anonymous) @ b63323c505d5b182.js:1
b63323c505d5b182.js:1 Cross-Origin-Opener-Policy policy would block the window.closed call.
(anonymous) @ b63323c505d5b182.js:1
/_next/image?url=https%3A%2F%2Foaisdmntpreastus2.blob.core.windows.net%2Ffiles%2F00000000-dd68-71f6-8f1d-444874f61fec%2Fraw%3Fse%3D2026-05-14T13%253A40%253A44Z%26sp%3Dr%26sv%3D2026-02-06%26sr%3Db%26scid%3D1d1ad5cd-e4c9-4873-9726-6cac73efcea9%26skoid%3D02b7f7b5-29f8-416a-aeb6-99464748559d%26sktid%3Da48cca56-e6da-484e-a814-9c849652bcb3%26skt%3D2026-05-14T13%253A29%253A55Z%26ske%3D2026-05-16T13%253A29%253A55Z%26sks%3Db%26skv%3D2026-02-06%26sig%3Ddg%2Fy8vFEz5BDgaEUFRj787ToWfbEfr6Zha7OBlXk4WY%253D&w=1920&q=75:1  Failed to load resource: the server responded with a status of 400 ()