Passage
A paragraph-sized, self-contained text chunk that an LLM uses as the basic unit of citation and synthesis during RAG and grounding — not the full page
What is a Passage?
A passage is a paragraph-sized text chunk that an LLM lifts from a page — not the whole page — to build an answer. It typically runs 100–500 tokens and serves as the basic unit of citation and synthesis during the RAG and grounding stages.
A simple analogy:
- Page = a whole book
- Passage = a single paragraph you tear out, saying "the answer is right here"
How is it different from a token?
Token and passage sit at different layers of granularity.
| Unit | Size | Role | Example |
|---|---|---|---|
| Token | Character or word fragment | The smallest unit for LLM processing, billing, and context-window accounting | "ChatGPT" → 3 tokens |
| Passage | Dozens to hundreds of tokens | The semantic unit (paragraph) for retrieval and citation | A core-answer paragraph directly after a heading |
In one line: tokens are characters or syllables; passages are paragraphs. A passage is a meaningful grouping of tokens, while the LLM's context window itself is measured in tokens.
Why does it matter?
A common misconception is "my entire page gets cited in the LLM answer." In reality, only one or two passages per page typically enter the context. As a result, paragraph-level quality often outweighs page-level domain authority when it comes to surviving into the synthesis stage.
What makes a page "well-sliceable"?
- Direct-answer paragraphs: A 50–200 character paragraph immediately after a heading, delivering the core answer.
- Schema markup: FAQPage, HowTo, and Article schema let the LLM clearly recognize passage boundaries.
- Self-contained paragraphs: A passage must still make sense on its own — phrases like "as explained above…" hurt grounding.
- Question-style H2 / H3: A structure where each H2 holds an answer to a different sub-query within the same page.
It is not "the well-written page" but "the well-sliceable page" that makes it into the context.
Related Terms
Is your site visible in AI search?
See for free how ChatGPT, Perplexity, and Gemini describe your brand.
Start Free Diagnosis →