Sigma AI: pay, who can join and open jobs
Sigma AI is a data-annotation company with roots in linguistic projects and a strong presence in Europe and Latin America. It hires freelancers to label data, transcribe speech and evaluate AI output in dozens of languages.
Who Sigma AI is hiring right now
Who can join Sigma AI: Projects posted per language.
Hourly pay by platform: lowest, median and highest
Based on open jobs with hourly pay listed on aitrainer.jobs. The bar runs from the lowest to the highest rate; the dot is the median.
- Mindrift$35–$240
- Stellar AI$25–$200
- Rex.Zone$20–$150
- Micro1$15–$150
- RealTrainAI$48–$140
- Afterquery$20–$200
- Mercor$16–$250
- Ethos$35–$350
- Aura One$6–$500
- Invisible$5–$150
- Alignerr$10–$400
- TransPerfect$29–$58
- Appen$24–$100
- xAI$35–$35
- BrainTrust$5–$150
- SuperAnnotate$5–$33
- HumanSignal$6.5–$80
- LXT$20–$25
- Welocalize$5–$105
- RWS$6–$36
- Turing$15–$30
- Claru$5–$100
- TELUS$11–$14
Latest Sigma AI jobs
German, Russian and English Linguistic Projects (Remote) | Sigma AI New
Arabic, French, and English Linguistic Projects (Remote) | Sigma AI New
Lithuanian Linguistic Projects (Remote)
Romanian Linguistic Projects (Remote) -- Sigma AI
Turkish Linguistic Projects (Remote)
Russian Linguistic Projects (Remote) -- Sigma AI
About Sigma AI
Sigma AI is a data-annotation company with roots in linguistic projects and a strong presence in Europe and Latin America. It hires freelancers to label data, transcribe speech and evaluate AI output in dozens of languages.
It is a solid choice for native speakers of less common languages, since many projects need specific locales and dialects.
Tips before you apply
- List every language you speak natively and your accent/region — that is how projects are matched.
- Tasks are often short, so check the platform regularly.
Official site: sigma.ai