This feels... Scammy? Not to be accusatory, but gpt 4 is expensive to run. It is impossible for people to use it for free.
What llm is actually providing the response here? Either someone is footing the bill for an API and acting as a proxy, a situation which raises many red flags, or the model you're talking to is something far cheaper to run, like a mistral model.
Even the second case is sketchy. ๐
There is almost no chance that it is truthfully based on gpt 4. If you want a free, open source llm with 32k context and generous limits, I recommend using huggingface.co/chat/
The nous-hermes model (you can select different models) is uncensored, and performs really well for a open source model. Plus, they have data controls so you can turn off data gathering per model. Huggingface is a reputable vendor, and doesn't claim to be something it isn't.