GroundCUA: Grounding Computer Use Agents on Human Demonstrations

🌐 Website | 📑 Paper | 🤗 Dataset | 🤖 Models

GroundCUA Dataset

GroundCUA is a large and diverse dataset of real UI screenshots paired with structured annotations for building multimodal computer use agents. It covers 87 software platforms across productivity tools, browsers, creative tools, communication apps, development environments, and system utilities. GroundCUA is designed for research on GUI grounding, UI perception, and vision-language-action models that interact with computers.

---

Highlights

• 87 platforms spanning Windows, macOS, Linux, and cross-platform apps
• Annotated UI elements with bounding boxes, text, and coarse semantic categories
• SHA-256 file pairing between screenshots and JSON annotations
• Supports research on GUI grounding, multimodal agents, and UI understanding
• MIT license for broad academic and open source use

---

Dataset Structure

GroundCUA/
├── data/              # JSON annotation files
├── images/            # Screenshot images
└── README.md

Directory Layout

Each platform appears as a directory name inside both data/ and images/.

• data/PlatformName/ contains annotation JSON files
• images/PlatformName/ contains corresponding PNG screenshots

Image and annotation files share the same SHA-256 hash.

---

File Naming Convention

Each screenshot has a matching annotation file using the same hash:

• data/PlatformName/[hash].json
• images/PlatformName/[hash].png

This structure ensures:

• Unique identifiers for each screenshot
• Easy pairing between images and annotations
• Compatibility with pipelines that expect hash-based addressing

---

Annotation Format

Each annotation file is a list of UI element entries describing visible elements in the screenshot.

[
  {
    "image_path": "PlatformName/screenshot_hash.png",
    "bbox": [x1, y1, x2, y2],
    "text": "UI element text",
    "category": "Element category",
    "id": "unique-id"
  }
]

Field Descriptions

image_path
Relative path to the screenshot.

bbox
Bounding box coordinates [x1, y1, x2, y2] in pixel space.

text
Visible text or a short description of the element.

category
Coarse UI type label. Present only for some elements.

id
Unique identifier for the annotation entry.

---

UI Element Categories

Categories are approximate and not guaranteed for all elements. Examples include:

• Button
• Menu
• Input Elements
• Navigation
• Sidebar
• Visual Elements
• Information Display
• Others

These labels provide light structure for UI grounding tasks but do not form a full ontology.

---

Example Use Cases

GroundCUA can be used for:

• Training computer use agents to perceive and understand UI layouts
• Building GUI grounding modules for VLA agents
• Pretraining screen parsing and UI element detectors
• Benchmarking OCR, layout analysis, and cross-platform UI parsing
• Developing models that map UI regions to natural language or actions

---

License

GroundCUA is released under the MIT License.
Users are responsible for ensuring compliance with all applicable laws and policies.