I was not aware that you could use chatgpt anonymously.
You can try HuggingChat . If you are lucky, it will give you a prompt that you can try it as a guest, without logging in. This will allow you 5 chances to use it without an account.
Looks like it’s caused by the server responding with 403 Forbidden which is the usual code for banned and rate-limited IPs. But sometimes the dev tools show NS_BINDING_ABORTED, while still showing the response? I don’t know how it works.
Alternative
Consider https://anonchatgpt.com/ as an alternative. Although it’s quite a lot more limited, e.g. you can’t have a “thread” — only one message is handled at a time.
You can use https://chat.lmsys.org. It does have cloudflare, but it lets me through, and I’m not sure if it helps or not but highlighting and clicking while moving the mouse seems to convince it I’m not a robot? However they have GPT-4 turbo, GPT-4 and about 30-40 other models. I recommend trying Claude Opus (near gpt4 turbo quality) as gpt 4 and turbo are rate limited. Llama 3 70b is also a good option.