# Vision / Understanding Models

Analyze and understand images or videos — captioning, OCR, VQA, object detection, segmentation.

**6 models documented in this category.**

| Model | Slug | Creator | Summary |
|---|---|---|---|
| [Video Understanding](../skills/fal-ai__video-understanding.md) | `fal-ai/video-understanding` | Alibaba Cloud (Qwen2-VL) | Analyze video content and answer descriptive questions or provide summaries using advanced vision-language processing. |
| [Moondream 3 Preview [Query]](../skills/fal-ai__moondream3-preview__query.md) | `fal-ai/moondream3-preview/query` | M87 Labs / Moondream AI | A state-of-the-art vision language model with mixture-of-experts architecture for visual reasoning, object detection, and OCR. |
| [SAM 3 (Segment Anything Model 3)](../skills/fal-ai__sam-3__image.md) | `fal-ai/sam-3/image` | Meta AI | Meta's unified foundation model for open-vocabulary object detection, segmentation, and tracking across images and videos. |
| [Florence-2 Large | Detailed Caption](../skills/fal-ai__florence-2-large__detailed-caption.md) | `fal-ai/florence-2-large/detailed-caption` | Microsoft | An advanced vision foundation model from Microsoft optimized for generating comprehensive, detailed descriptions of images. |
| [Moondream3 Preview [Caption]](../skills/fal-ai__moondream3-preview__caption.md) | `fal-ai/moondream3-preview/caption` | Moondream AI (M87 Labs) | A high-efficiency 9B Mixture-of-Experts vision language model capable of high-speed image captioning and visual reasoning. |
| [GOT-OCR2 (General OCR Theory)](../skills/fal-ai__got-ocr__v2.md) | `fal-ai/got-ocr/v2` | Stepfun-ai (Haoran Wei, Chenglong Liu, et al.) | An advanced 580M parameter OCR model that handles everything from plain text and scene text to complex charts, formulas, and sheet music. |

## When to pick what

See each individual model's skill file for full prompting tips, parameter tuning, and alternatives.