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

# Segmentation Strategy

> Controls the segmentation strategy

The chunkr AI API allows you to specify a `segmentation_strategy` for each document. This strategy controls how the document is segmented.

We have two strategies:

* `LayoutAnalysis`: Run our state-of-the-art layout analysis model to identify the layout elements. This is the default strategy.
* `Page`: Each segment is a page.

This is how you can configure the segmentation strategy:

<CodeGroup>
  ```python Python theme={"system"}
  from chunkr_ai import Chunkr
  from chunkr_ai.models import Configuration, SegmentationStrategy

  chunkr = Chunkr()

  chunkr.upload("path/to/file", Configuration(
      segmentation_strategy=SegmentationStrategy.LAYOUT_ANALYSIS 
  ))
  ```

  ```bash cURL theme={"system"}
  curl --request POST \
    --url https://api.chunkr.ai/api/v1/task/parse \
    --header 'Authorization: YOUR_API_KEY' \
    --header 'Content-Type: application/json' \
    --data '{
      "file": "base64_encoded_file_content",
      "file_name": "document.pdf",
      "segmentation_strategy": "LayoutAnalysis"
    }'
  ```
</CodeGroup>

## When to use each strategy

For most documents, we recommend using the `LayoutAnalysis` strategy. This will give you the best results.

Use `Page` for:

* Faster processing speed when you need quick results and layout isn't critical
* Documents with unusual layouts that confuse the layout analysis model
* If the layout is complex but not very information dense, `Page` + VLM can generate surprisingly good HTML and markdown (see [Segment Processing](/pages/features/segment-processing)).