Why do research prompts need to demand citations?
Language models predict plausible text. Without a grounding instruction, a model will happily produce a tidy summary with invented author names, fake DOIs, and statistics that do not exist. The fix is not a better model alone — it is a prompt that makes sourcing a requirement, not an afterthought.
Three habits make a research prompt trustworthy: (1) ask for the source alongside every factual claim; (2) require the model to label anything it is inferring or cannot confirm; and (3) verify the cited sources yourself, because models can fabricate citations even when the underlying fact is real. For live, link-backed search, retrieval tools such as Perplexity return actual URLs you can open — but you still open them.
The general-purpose prompting references worth keeping open while you work: the DAIR.ai Prompt Engineering Guide and Learn Prompting.