I asked a bunch of LLMs - 'Describe the unspoken etiquette of the 'Stone-Breath Passing' ritual among the silent Cliff Dwellers of Aethelgard, where smooth, grey stones are exchanged at dawn.' Obviously, all of these things are made up. But, LLMs are such eager beavers. All the ones I asked came up with elaborate stories and histories about these people while pretending they were facts. Example- 'Certainly. The Stone…
The issue is probably that the first sentence, the prompt, statistically looks like fantasy (as in the literary genre) and it primes the LLM to answer in the same probabilistic genre. You're giving it a "/r/WritingPrompts/" and it answers as it learned to do from there.
https://chatgpt.com/share/680b32bc-5854-8000-a1c7-cdf388eeb0...
It's easy to blame the models, but often the issue lies in how we write our prompts. No personal criticism here—I fall short in this way too. A good tip is to ask the model again, with the prompt + reply and the expected reply why this didn't work... we all will get better over time (humans and models)