ChatGPT says to be GPT-3 when I use the plugins

This happens when I ask for the GPT model version here: https://chat.openai.com/

I have selected GPT4

If I select “default” option the assistant says: I’m based on OpenAI’s GPT-4 architecture

If I select the plugin option. The assistant says: I’m based on OpenAI’s GPT-3 model.

What would be the explanation for this? I understand that the plugins run only on chagGPT 4 (at the moment)
And I have not exceeded the limit of 25 queries per 3 hours at the time of making the queries

Thanks!