Top-quality data
Collect and annotate training data that meets and exceeds industry quality standards thanks to multiple quality control methods and mechanisms available in Toloka.
Scalable projects
Have any amounts of image, text, speech, audio or video data collected and labeled for you by millions of skilled Toloka users across the globe.
Save time and money with this purpose-built platform for handling large-scale data collection and annotation projects, on demand 24/7, at your own price and within your timeframe.
Free, powerful API
Build scalable and fully automated human-in-the-loop machine learning pipelines with a powerful open API and Python library for easy integration.

Annotations we support

With Toloka, you can control data labeling accuracy to build a predictable pipeline of high-quality training data that impacts your CV algorithms. Our platform supports annotation for image classification, semantic segmentation, object detection and recognition, and instance segmentation. Labeling tools include bounding boxes, polygons and keypoint annotation.
Ask Tolokers to draw pixelwise boundaries for each object instance or group of objects.

Read Case Study

Price for 1000 tasks: $15. Turnaround time: 3 hours.*

Ask Tolokers to identify objects in images that match certain classes and use bounding boxes to mark the location.

Price for 1000 tasks: $15. Turnaround time: 3 hours.*

Ask Tolokers to identify objects in images that match certain classes and draw pixel-perfect polygons around the exact shape.

Price for 1000 tasks: $15. Turnaround time: 3 hours.*

Tolokers can label feature details in human faces to identify facial landmarks, expressions or emotions.

Price for 1000 tasks: $15. Turnaround time: 3 hours.*

Use Toloka to classify images by matching visual content with one or more pre-defined categories.

Price for 1000 tasks: $4.5. Turnaround time: 1 hour.*

Ask Tolokers to transcribe text in PDF files. Use labeled data to train your text recognition algorithms, or validate and fine-tune the output of your own OCR models.

Price for 1000 tasks: $15. Turnaround time: 3 hours.*

Use side-by-side image comparisons to verify or clean up your data. Ask Tolokers to look at two images and pick which one is better.

See how it works

Price for 100 image pairs starts at $1.5. Turnaround time: 1 hour.*

Collect datasets of videos or images related to a common theme, or with a specific type of lighting or environment. Ask Tolokers to record video snippets according to your specifications and instructions.

Price for 100 tasks: $6. Turnaround time: 5 hours.*

* Approximate cost. Not a public offer. Price and turnaround time for tasks are set by the requester and depend on the type of task, input data, and other factors.

Crowdsourcing means unlimited resources

Data collection and labeling processes place high demands on the time, skills and expertise of a large number of people. Toloka gives you access to an unlimited crowdforce available 24/7 across the globe, plus intelligent tools and quality control methodologies for transparent and scalable workflows.

Real-time insights

Track your projects with real-time statistics on progress, spending, quality, time spent on tasks and active users involved. Leverage detailed analytics to fine-tune as necessary and make timely decisions to optimize speed, quality and budget.
Success stories
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Millions of Tolokers are available for your projects 24/7.
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Thu Oct 21 2021 15:59:16 GMT+0300 (Moscow Standard Time)