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Beyond Vision: CVAT Goes Multimodal and Introduces Audio Annotation. Learn more

CVAT

Professional Data Labeling Services for AI and Machine Learning Teams

Fast-track your AI product development with high-quality training data, labeled by the CVAT annotation experts.

We label core vision formats and beyond:

  • Images
  • Videos
  • 3D point clouds
  • Audio
Quality settings with Ground Truth validation selected
Oak leaf with a necrosis region segmented in CVAT
World map of annotators across 12 time zones
Knee X-ray with a reviewer's issue on the patella label
Annotation speed chart: 150 objects against 75 objects
Aerial photo of rooftops with 694 solar panels labeled

Trusted by ML teams worldwide

Read customer stories
  • FERNRIDE
  • TB Maestro
  • MiR
  • EPAM
  • Gendo
  • Purdue University
  • Vivint
  • Arbo Air
  • Kombai
  • Diligent
  • UIC College of Medicine
  • Tecnalia
  • Vimaan
  • Dragonfly AI

Why AI teams choose CVAT for labeling their data

From Fortune 500 enterprises to world-class research labs to fast-moving AI startups — we help top teams build great AI models, faster.

Quality annotations for every vision task, ready for model training

We support a wide range of computer vision labeling tasks across image, video, and 3D datasets—delivering production-ready annotations tailored to your AI model’s needs.

Images

  • Image classification
  • Object detection
  • Semantic & instance segmentation
  • Keypoint detection
Sheep classified in a field
Peppers detected with attributes
Aerial intersection segmented by class
Tennis player with pose keypoints

Videos

  • Object tracking
  • Action recognition
  • Event tagging
A bee tracked across video frames

Audio

  • Speech-to-text transcription
  • Audio segmentation
  • Audio classification & attribution
Waveform split by speaker

3D Point Clouds

  • 3D object detection
  • 3D object tracking
LiDAR point cloud with 3D cuboids

Expert data labeling service, straight from the source

Built for every team working with visual data

From aerial imagery analysis and infrastructure inspection to insurance damage assessment, thousands of ML teams trust CVAT for labeling and managing their training data.

Our process

Free Pilot Project

Submit a small sample of your data for a free proof of concept. We label it using an agreed scope and guidelines, so you can review quality, turnaround time, and deliverables before committing.

An annotator labeling a fish in a reef photo

Proposal and Delivery Plan

We prepare a detailed proposal based on the confirmed scope. It includes pricing, delivery schedule, batch structure, and the exact output formats you will receive.

Service agreement covering pricing, guidelines, schedule and output formats

Production Labeling

Our annotation team labels your full dataset at scale, following the approved guidelines. You get regular updates and staged deliveries based on the agreed cadence.

Two annotation jobs in progress

Quality Assurance

We run manual and automated quality checks to verify consistency and accuracy against the agreed criteria. You receive clear QA reporting with each delivery stage.

Quality control page with mean annotation quality of 90.2%

Dataset Delivery

We deliver the complete labeled dataset in the agreed format, along with a QA summary and final project notes for handoff to your ML team.

Final dataset exported to local and cloud storage

How we ensure quality

We use layered validation methods and detailed QA reports to ensure consistently accurate results.

Secure & compliant data labeling

We take data protection seriously, from legal safeguards to technical controls.

Flexible pricing for datasets at any stage

From one-time to long-term annotation projects with evolving datasets, we adapt to your workflow, not the other way around.

Pricing Models

  • Per object
  • Per image or video
  • Custom
PlanComplete DatasetIncomplete Dataset
Payment termsPay on completionPay upfront, use over time
Minimum budget$5,000$5,000

Get in Touch with Our Experts

  • Analyze your current project pipeline
  • Identify data labeling needs and automation opportunities
  • Calculate potential savings on outsourcing labeling work
Annotator reviewing labeled aerial imagery at a monitor
CVAT

Frequently Asked Questions

What is the minimum amount of data you can label?

We don’t have a strict minimum in terms of data volume. Instead, we approach each project based on its complexity, annotation type, and quality requirements.

For example, labeling 100 images with one object per frame using bounding boxes might take just a few hours. But 100 images with 10+ objects per frame, labeled with polygons or instance masks, would be significantly more time-consuming and costly. Because of this variability, we scope projects individually and provide a tailored quote after reviewing your dataset and requirements.

That said, our minimum project budget starts at $5,000. This helps ensure we can allocate the right experts, maintain quality control, and deliver results that meet our standards. If you're unsure whether your project fits, feel free to reach out — we're happy to review your data and advise.

How fast can you deliver annotated data?

Our typical turnaround time for contracted projects is approximately 1 month, though we always strive to deliver results faster when possible.

Can you handle large-scale annotation projects?

Absolutely. We maintain a team of 300+ qualified annotators that we can scale up or down based on your volume requirements. We can also adjust our resources to match your data collection and training workflow and provide continuous annotation support through our subscription service model.

Who will be labeling my data?

Your data will be handled by our in-house team of annotation specialists. Each team member has undergone comprehensive training and has experience with dozens of annotation projects, ensuring consistent, high-quality results.

How do I start a data annotation project with you?

Getting started is simple. Fill out our contact form to discuss your project requirements and timeline.

What data labeling types do you support?

We provide comprehensive annotation services for images and video, including classification, object detection, segmentation, keypoint annotation, tracking, and action recognition. Our team adapts to your specific project requirements and data formats.

Can I order a pilot project?

Yes, we encourage pilot projects. During the project evaluation stage, we offer a free proof of concept that allows us to assess your data and requirements, define the budget, demonstrate our annotation quality, and introduce you to the CVAT platform where we perform the labeling work.

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