A useful but little-known OpenAI API feature 📎 Users asking "where did the AI get that from?" and you can't easily show them? There's a built-in way to fix that. OpenAI's "Citation formatting" lets the model attach structured source citations to its output. A game-changer for trust and transparency in RAG and search-powered applications. 📌 Title: Citation formatting 🔗 URL: 🧩 Overview If an LLM's answer can't point to its sources, users won't trust it. Citation formatting automatically adds structured references to the model's output, showing which statements come from which source documents. This makes "evidence transparency" in RAG applications dramatically better. 🛠 How to use it Pass source documents in your input and enable citation formatting. The model generates its answer and automatically attaches references to the relevant sources. The output includes inline citation markers and structured source information, making it easy to render source links in your UI. 🏗 Building it into production ・RAG search apps: feed retrieved documents to the model, generate answers, and display source links alongside each statement. ・Internal knowledge bots: use company documents as sources and show exactly which document and section backs each answer. ・Legal and compliance tools: cite regulations and policy documents explicitly for auditability and trust. ・Education platforms: display citations from course materials so learners can check the original sources. 💡 Use cases 🔎 Cited answers in RAG applications 🏢 Evidence display for internal knowledge bases ⚖️ Legal and compliance document references 📚 Source attribution in educational content ⚠️ Watch out Citation accuracy depends on the model correctly identifying relevant passages in the sources. If sources are vague or too numerous, citation quality may drop. The quality and granularity of your source documents matter a lot. Also, citations don't guarantee 100% answer accuracy, so design your UI to let users verify the original source. ✨ "Can I trust this AI's answer?" is the biggest barrier to business adoption. Start with citation formatting in your RAG app and watch user confidence grow. #OpenAI# #LLM#