To clarify a few things - FastGPT is a free research experiment in speed. We are using web search + LLM together and trying to see what is the the best possible latency achievable (hence the name). We usually output the first character out of the model in 900ms, while running a full web search to feed into to the model before the inference.
It is not the most accurate combination around (we are building an experiment called ExpertGPT for that) but it should be the fastest with these capabilities.
The underlying LLM is Anthropic Claude Instant (we've been pretty open about it). The prompt we came up with was our 'best effort' to prevent confusion in branding for users not aware what Anthropic is (we asked Anthropic about this too, it turns out is pretty hard for an Anthropic LLM to forget "who" it is). I am pretty sure it can be jailbroken in much more funnier ways, but these "jailbreaks" are really not something we are concerned with.
One should look at these models (and prompts) as commodities that will come and go, the challenge really is building long term meaningful and useful products around them. This is why we came up with a few guiding principles in using AI [1].