Prolific vs Sigma AI
How the two compare for AI training work, using pay and job counts from listings that are open right now.
 Prolific | ||
|---|---|---|
| Open jobs here | 591 | 72 |
| Median pay | $30/hr | Not enough data |
| Typical range | $23–$115/hr | Not enough data |
| Highest posted | $200/hr | Not enough data |
| Rating | 0.0 | 0.0 |
| Would recommend | 0% | 0% |
| Hires most for | Data Annotation & Labeling, Linguistic Annotation, AI Expert - Clinical & Medical | Language Data, Bilingual LLM & Translation, Linguistic Annotation |
| Founded | 2014 | Not listed |
| Country limits | None listed | None listed |
About Prolific
Trusted research platform connecting participants with academic and commercial studies.
Prolific pay, process, and 591 open jobsAbout Sigma AI
Madrid-headquartered global AI training-data services company. Powers 4 of the 5 largest global tech giants across 600+ languages and dialects.
Sigma AI pay, process, and 72 open jobsCommon questions
Which has more open jobs, Prolific or Sigma AI?
Prolific has 591 open AI training jobs here, compared with 72 at Sigma AI.
Can I work for both Prolific and Sigma AI?
Usually, yes. Most AI training work is freelance or contract, and many people work on several platforms to keep a steady flow of tasks. Check each contract for exclusivity terms.