GPT-3 Grandmother (奶奶) a free GPT-3-powered chatbot with the intention of practicing Chinese, but one doesn’t need to know Chinese to use it because translations to English are provided.

The response from GPT-3 sometimes hangs. It seems the only remedy is to reload the page in your browser or open the site in another tab/window.
The exact same input can result in different outputs.
As expected for a chatbot, prior dialogue in the same conversation is taken into account when GPT-3 generates output.
Using input “Respond in English only” or similar can sometimes cause the output to be given in only English.
This site may be using GPT-3 settings that are more oriented towards creativity than factual accuracy.

Source: https://www.reddit.com/r/artificial/comments/iq43ve/chat_with_gpt3_grandmother_a_free_gpt3powered/