Pay per labelled unit, or per annotator-hour for a dedicated team. Every plan includes a two-stage quality review. Prices are in US dollars and exclude 16% Kenyan VAT where it applies.
For validating taxonomy, quality and workflow before production scale.
Flexible production without a long-term commitment or minimum spend.
/ annotator-hour · from 5 annotators, 3-month minimum.
For 50+ annotators, regulated data or complex multi-workstream programs.
Standard rates cover normal production complexity; high-accuracy rates add independent review and consensus scoring.
| Data type | Task | Unit | Standard | High accuracy |
|---|---|---|---|---|
| Image | Classification (single or multi-label) | image | $0.02 | $0.04 |
| Image | Bounding boxes | box | $0.035 | $0.06 |
| Image | Polygons | polygon | $0.09 | $0.16 |
| Image | Keypoints / pose | skeleton | $0.12 | $0.20 |
| Image | Semantic segmentation | image | $1.80 | $4.50 |
| Video | Object tracking | object / 100 frames | $0.65 | $1.10 |
| Video | Event / action tagging | minute | $0.90 | $1.60 |
| Text | Classification and sentiment | item ≤300 words | $0.015 | $0.03 |
| Text | Named entity recognition | item ≤300 words | $0.06 | $0.12 |
| Language | Translation review EN ↔ African language | 100 words | $1.20 | $2.00 |
| Audio | English transcription | audio minute | $0.55 | $0.95 |
| Audio | African languages / code-switched speech | audio minute | $0.85 | $1.40 |
| LLM / GenAI | Preference ranking (RLHF) | comparison | $0.45 | $0.80 |
| LLM / GenAI | Response writing and red-teaming | annotator-hour | $14.00 | $22.00 |
| Expert evaluation | Medical, legal or finance | annotator-hour | from $28.00 | Quoted |
“High accuracy” adds a third independent review and consensus scoring, targeting 99%+ on the agreed gold set. Complex ontologies with more than 40 classes are quoted after a pilot.
Use the calculator for a rough budget; your final quote depends on the approved guidelines, complexity and quality target.
10% above $10,000/month, 15% above $25,000 and 20% above $50,000, applied automatically where applicable.
Pay-as-you-go billed monthly in arrears on net-15 terms; dedicated teams invoiced monthly in advance.
If a batch scores below the agreed accuracy on your gold set, we relabel it at no cost within 3 working days.
Universities and registered non-profits working on African languages or public health can request preferential rates.
