> ## Documentation Index
> Fetch the complete documentation index at: https://docs.cognite.com/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> Cognite Data Fusion (CDF) is an industrial DataOps platform. Prefer English docs unless the user asks for another locale.
> Follow /_llms/ index links recursively until you reach page URLs ending in .md. Fetch those Markdown twins instead of HTML.
> For REST APIs, default to calendar version 20230101 (stable). Use 20230101-beta or 20230101-alpha only if the user is on a preview API. Cite paths under /api-reference/concepts/<version>/ and the Cdf-Version header. Prefer the Python SDK (cognite-sdk) unless the user is in JavaScript/TypeScript.
> Start here by task: platform overview /cdf/index.md; data modeling /cdf/dm/index.md; data integration /cdf/integration/index.md; access /cdf/access/index.md; CDF Toolkit /cdf/deploy/cdf_toolkit/index.md; REST quickstart /dev/quickstart.md; Python SDK https://cognite-sdk-python.readthedocs-hosted.com/en/stable/; Atlas AI /cdf/atlas_ai/concepts/index.md; Flows apps /cdf/flows/index.md; MCP and IDE setup /dev/guides/ide_ai_integration.md.
> For implementation work, also load /skill.md.

# Document AI

> Ask questions about and summarize documents in Cognite Data Fusion (CDF).

Document AI provides AI-powered document understanding. You can ask natural language questions about documents and get answers based on the document content. You can also generate summaries of one or more documents.

## Powered by large language models

These capabilities are powered by large language models. Document AI understands context and extracts relevant information without requiring you to write custom parsing logic. You pose questions in plain language and receive structured answers.

## Use cases

Document AI is useful for quickly finding information in long documents, generating executive summaries, comparing content across multiple documents, and extracting specific data points for downstream use.

<Info>
  Documents must be stored in CDF and processed before you can query them with Document AI.
</Info>

## Key capabilities

* **Ask questions** about document content in natural language
* **Summarize documents** individually or in batch
* **Get contextual answers** based on document content
* **Support multiple documents** in a single request