Human-powered polygon annotation for both irregular shaped and coarse object training data in images and video.

Polygons by a human with few lines of code.
Scalable, high quality data by API.

Use Cases

Scale turns your unannotated images into annotated images with bounding polygons around objects of interest.

Self Driving Cars

Our tools and workforce are trained to draw and label bounding polygons such as “car”, “stop sign”, “cyclist”, or “person” to power the future of autonomous vehicles.


Computer vision enables robotics to tackle new horizons in manufacturing, energy and health-care.


2D polygon bounding labels teach drones to identify pools, rooftops, trees and more.

How It Works

Send image or sensor data through our simple API and receive annotated and labeled ground truth data.

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"Bound and label all cars in each image."

  'instruction': 'Bound and label all cars in each image.',
  'attachment': 'http://i.imgur.com/XOJbalC.jpg',
  'objects_to_annotate': ['car', 'truck'],
  'with_labels': true
}, (err, task) => {
    // do something with task

Scale Helps You Move Faster

We combine humans with machine learning to provide a flexible and scalable solution for impeccable ground truth training data at low cost and lightning quick turn-around.

  • Integrated with Machine Learning

    We apply machine learning in a multitude of ways to make our workforce more efficient and ensure impeccable quality and accuracy.

  • Impeccable Quality

    We have built out sophisticated quality assurance processes with in-house specialists to ensure we only produce quality results even at large scales.

  • Powerful, Beautiful Interfaces

    Our optimized interfaces allow our Scalers to be accurate, productive, and successful while working with complex and unintuitive 3D data.

  • Customer QA

    Our customers get access to the same interfaces we use internally to be able to inspect and assure quality on our results. We make it easy to check our work.

  • Customer Success Engineering

    We pair our customers with a dedicated customer success engineer who ensures smooth integration and service for our customers.

  • Built for Scale

    We process millions of tasks each month and are built to rapidly scale up and down to meet your requirements.


You only pay for what you use. There are no additional costs or termination fees.

If you have more than 1000 requests per month or require a task completion time SLA, chat with us about enterprise plans!


Get a quote instantly for our on-demand service or contact us about our enterprise pricing.

8000 Images
    4 Annotations Per Image
      Total: $4,000.00

      Scale is Trusted by World Class Companies

      We already support machine learning for some of the biggest autonomous vehicle and computer vision companies in the world.

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      Get Started Today for Free