Human data labeling, delivered through an API

The same workforce that handles millions of tasks a day for developers worldwide. Send a batch or a single item, get labeled data back. Per-task pricing, no minimums, no annual contracts.

6 M
tasks per day
5 k
active workers
80
countries
19
years on the market
10 s
median latency
99.99 %
uptime

Task types

Pick the vertical closest to your work — we'll quote a per-task price for it.

🏷️
Image classification & tagging
Assign labels or multiple tags to images.
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🔲
Bounding boxes / object detection
Draw boxes around objects with class labels.
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🧩
Segmentation & keypoints
Pixel masks and precise keypoint annotation.
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🧾
OCR correction & document data entry
Receipts, invoices, forms, meter readings.
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🛡️
Content moderation
NSFW, violence, spam and policy review.
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🛒
Product matching & catalog enrichment
Dedupe, match and enrich e-commerce catalogs.
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🎧
Audio transcription & speech data
Transcription and speech data collection.
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💬
Text classification, sentiment, intent
Categorize text, sentiment and intent.
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🤖
LLM output evaluation & preference ranking
Rate, compare and rank model outputs.
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Something else — describe your task
Custom workflow? Tell us what you need.
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How it works

No sales cycle. You can go from sample to running tasks the same day.

1
Send a sample and your labeling guidelines
A handful of representative items and a short description of what "correct" means for you.
2
We calibrate on a golden set and quote a per-task price
We measure achievable accuracy on your data and come back with a firm per-task price.
3
Push tasks via API or upload a batch
Stream single items in real time or drop a batch. Results come back with per-label confidence.

Why us

  • Seconds, not overnight batches. Real-time endpoint: send one item, get a human answer synchronously.
  • Burst to thousands of parallel workers without a ramp-up period.
  • Every worker carries an accuracy track record built over years of graded work — premium tasks route only to the top percentile.
  • No sales calls, no procurement. Self-serve pricing, pay as you go.
  • 24/7 across time zones — deadlines don't wait for a shift to start.

Quality

  • Configurable N-way consensus — multiple independent workers per item, agreement thresholds you set.
  • Golden-set injection and continuous per-worker scoring — known-answer items seeded into the stream to grade workers live.
  • Disputed items auto-routed to reviewers — disagreements escalate to senior reviewers instead of guessing.
  • Accuracy SLA — anything below it gets re-labeled free.

Pricing

From $1.0 per 1,000 simple labels.

Simple labels (single-choice tags, yes/no moderation) sit at the low end. Boxes, segmentation, transcription and multi-step tasks are priced per task after calibration on your data.

Compliance

  • NDA available at the company level before any data is shared.
  • Worker-level NDA — individual workers are bound, not just the platform.
  • Data deleted after delivery — task data is removed once results are handed over.
  • No reuse — your data is never repurposed for anything beyond your tasks.

FAQ

What's the typical turnaround?

Single items via the real-time endpoint return in seconds. Large batches scale with worker count — we burst to thousands of parallel workers, so throughput is a function of volume, not a fixed overnight window.

Is there a minimum volume?

No minimums and no annual contract. You can send a single item or millions; pricing is per task either way.

What happens if quality is low?

Every project runs against an accuracy SLA. Anything that falls below the agreed threshold is re-labeled free of charge.

Can you handle sensitive data?

Yes. We offer company-level and worker-level NDAs, delete task data after delivery, and never reuse your data. Share only what you're comfortable with during calibration.

Do you do medical or legal data?

We can handle general document and text work in these domains under NDA, but we don't claim regulated certifications. Tell us the specifics in the form and we'll be straight about what we can and can't take on.

How are workers paid?

Workers are paid per completed task, around the clock across time zones, with earnings tied to their graded accuracy track record.

Get a quote for your dataset

Tell us what you need. We'll reply with a per-task price and an accuracy estimate.

We only use this to prepare and send your quote.