Great question. Attribution varies significantly by platform architecture.
Types of AI attribution:
| Type | Definition | Traffic Impact | Example Platforms |
|---|
| Linked citations | Clickable URLs in response | High | Perplexity, Google AI Overviews |
| Unlinked mentions | Brand name without link | Low | ChatGPT (parametric mode) |
| Source panels | Separate UI showing sources | Medium | Perplexity, Google AI Mode |
| Inline references | “According to [source]…” | Low | Most platforms |
| Implicit | Used but not credited | None | Base LLMs |
Why this variation exists:
It’s architectural. Perplexity and Google AI Overviews use retrieval-augmented generation (RAG)—they search in real-time and cite what they find. ChatGPT’s parametric mode uses learned knowledge, making specific citations harder.
The key insight:
Linked citations only happen when the AI retrieves content in real-time. Parametric knowledge (what the model learned during training) rarely generates links.