---
title: "VlmClassificationStrategy"
canonical_url: "https://www.nutrient.io/api/csharp/enums/vlm-classification-strategy/"
md_url: "https://www.nutrient.io/api/csharp/enums/vlm-classification-strategy.md"
last_updated: "2026-10-08T08:55:57.713Z"
description: "Strategy for how zones are sent to the VLM for classification."
---

Strategy for how zones are sent to the VLM for classification.

```csharp

using Nutrient;

```

## Values

| Name                                  | Value | Description                                                                                                                                                                                                          |
| ------------------------------------- | ----- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `VlmClassificationStrategy.OneShot`   | `0`   | Send a single full-page image with bounding box coordinates in the prompt. The VLM performs spatial reasoning to classify each zone by its bbox.                                                                     |
| `VlmClassificationStrategy.MultiZone` | `1`   | Crop each zone from the source image and send multiple zone images per VLM call. The VLM classifies each cropped image by its visual content. Supports batching (BatchSize) and parallel execution (MaxConcurrency). |

---

## Related pages

- [Enums](/api/csharp/enums.md)
- [Auto Tagging Engine](/api/csharp/enums/auto-tagging-engine.md)
- [Description Level](/api/csharp/enums/description-level.md)
- [Document Bookmark Source](/api/csharp/enums/document-bookmark-source.md)
- [Document Format](/api/csharp/enums/document-format.md)
- [Document Markup Mode](/api/csharp/enums/document-markup-mode.md)
- [Document Type](/api/csharp/enums/document-type.md)
- [Execution Provider](/api/csharp/enums/execution-provider.md)
- [Form Vlm Enrichment Model](/api/csharp/enums/form-vlm-enrichment-model.md)
- [Html Layout Type](/api/csharp/enums/html-layout-type.md)
- [Image Export Format](/api/csharp/enums/image-export-format.md)
- [Image Export Mode](/api/csharp/enums/image-export-mode.md)
- [Image Setting Mode](/api/csharp/enums/image-setting-mode.md)
- [Implicit Conversion](/api/csharp/enums/implicit-conversion.md)
- [Inline Style Reference Mode](/api/csharp/enums/inline-style-reference-mode.md)
- [Instant Json Render Theme](/api/csharp/enums/instant-json-render-theme.md)
- [Json Export Content](/api/csharp/enums/json-export-content.md)
- [Json Export Format](/api/csharp/enums/json-export-format.md)
- [Ocr Activation Mode](/api/csharp/enums/ocr-activation-mode.md)
- [Ocr Engine](/api/csharp/enums/ocr-engine.md)
- [Open Settings Mode](/api/csharp/enums/open-settings-mode.md)
- [Page Cache Mode](/api/csharp/enums/page-cache-mode.md)
- [Paper Normalization Mode](/api/csharp/enums/paper-normalization-mode.md)
- [Pdf Border Style](/api/csharp/enums/pdf-border-style.md)
- [Pdf Compression](/api/csharp/enums/pdf-compression.md)
- [Pdf Conformance](/api/csharp/enums/pdf-conformance.md)
- [Pdf Form Field Type](/api/csharp/enums/pdf-form-field-type.md)
- [Pdf Line Ending Style](/api/csharp/enums/pdf-line-ending-style.md)
- [Pdf Page Sizes](/api/csharp/enums/pdf-page-sizes.md)
- [Pdf Rubber Stamp Icon](/api/csharp/enums/pdf-rubber-stamp-icon.md)
- [Pdf Save Preferences](/api/csharp/enums/pdf-save-preferences.md)
- [Pdf Settings Mode](/api/csharp/enums/pdf-settings-mode.md)
- [Pdf Validation Conformance](/api/csharp/enums/pdf-validation-conformance.md)
- [Rendering Layout Mode](/api/csharp/enums/rendering-layout-mode.md)
- [Restoration Mode](/api/csharp/enums/restoration-mode.md)
- [Schema Compatibility](/api/csharp/enums/schema-compatibility.md)
- [Search Display](/api/csharp/enums/search-display.md)
- [Search Mode](/api/csharp/enums/search-mode.md)
- [Signature Certification Level](/api/csharp/enums/signature-certification-level.md)
- [Signature Format](/api/csharp/enums/signature-format.md)
- [Signature Hash Algorithm](/api/csharp/enums/signature-hash-algorithm.md)
- [Signature Key Source](/api/csharp/enums/signature-key-source.md)
- [Signature Level](/api/csharp/enums/signature-level.md)
- [Text Direction](/api/csharp/enums/text-direction.md)
- [Tiff Compression](/api/csharp/enums/tiff-compression.md)
- [Unit Mode](/api/csharp/enums/unit-mode.md)
- [Unparseable Output Handling](/api/csharp/enums/unparseable-output-handling.md)
- [Vision Engine](/api/csharp/enums/vision-engine.md)
- [Vision Features](/api/csharp/enums/vision-features.md)
- [Vision Output Format](/api/csharp/enums/vision-output-format.md)
- [Vlm Provider](/api/csharp/enums/vlm-provider.md)
- [Word Refining Method](/api/csharp/enums/word-refining-method.md)