Is Chatgpt Unblocked safe?

Chatgpt Unblocked routes chatgpt.com and any site you add through fixed proxy servers using one hardcoded login shared by all installs.

The extension sets a PAC-based proxy that sends traffic for chatgpt.com and any custom site you configure through one of four fixed backend IP addresses. It authenticates to that proxy with a single username and password baked into the extension's code, the same credential for every user and every plan. This doesn't expose your account data, but it means the traffic-routing credential isn't unique to you.