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Acolad AI Data Services

Official site

Related names: Acolad

Acolad’s freelance talent pool for AI data collection, annotation, language work and content validation, with contributors contacted for matching projects.

Data annotationData collectionLanguage & writing+1 more
Pay
Rates and workload vary by project and client.
Where & terms
Freelance projects with flexible scheduling; timing and workload depend on the project.
More where & terms

Data rights: Linked consent assigns collected data to the customer for uses including AI training and testing; review project consent before participating.

Joining
English PDF résumé, language and skills profile, then a freelance talent pool. Acolad contacts contributors for matching projects.
Payment
Vendor terms: 45 days end of month unless otherwise agreed or required by law. Bank transfer is default; application also offers Payoneer/PayPal preferences. Vendor pays bank fees at their end.
2 worker sources2 undated worker sources

AIWorks Plus

Official site

Related names: AIWorks · 에이아이웍스 플러스

Crowdsourced collection and labeling of AI training data through AIWorks Plus.

Data annotationData collection
Pay
Information unavailable
Where & terms
Not recorded
Joining
Public sign-up and project links; participation includes points-based and volunteer categories.
1 independent sourceNewest dated source:

Amazon Mechanical Turk

Official site

Related names: MTurk · Mechanical Turk

Permanently closed: 30 Sep 2026

A microtask marketplace with image tagging, transcription, translation and research surveys.

Data annotationLanguage & writingResearch & studies
Pay
Completed and approved HITs follow normal scheduled payouts after closure.
Where & terms
MTurk does not support US persons residing outside the US; this is its tax-status access rule.
Joining
Permanently closed on 30 September 2026. HIT submission has ended.
Payment
Verify your payment method and transfer schedule by 30 Oct 2026. Requesters may award bonuses until that date.
1 worker source · 1 independent source1 undated worker source

Atlas Capture

Official site

Related names: Atlas Capture LLC

Recording everyday activities, labelling text and reviewing AI responses through an iPhone app or browser-based projects.

Data annotationData collectionAI evaluation
Pay
Recording: per approved hour; rates vary by country and task. No numerical recording rate stated on the pages checked.
Where & terms
Project/location-dependent; check app or assignment availability.
More where & terms

Data rights: Other people’s consent required; research footage may be retained indefinitely, subject to deletion rights. Policy permits specified disclosures.

Joining
Video: iPhone 11+ and in-app headstrap order; confirm cost. Annotation/review: browser; English required for listed annotation role.
Payment
Recording: wallet credited each Monday. Withdraw $10+ after 5 approved hours; currency unspecified.
1 worker sourceNewest dated source:

Babel Audio

Official site

Related names: David AI Labs, Inc.

Audio tasks for AI training, including language-specific transcription and sound tagging. Rates and requirements depend on the project.

Data annotationData collectionLanguage & writing
Pay
Hindi example: up to US$110 per transcribed audio hour. Header says recorded hour instead; not a working-hour wage.
Where & terms
Role-specific language requirements; country eligibility needs checking for the project.
More where & terms

Data rights: Perpetual transferable content licence survives account closure; other ownership rights retained unless separately agreed.

Joining
Email and non-VoIP phone. Hindi example: native-level language, computer, internet and quiet workspace; experience preferred.
Payment
Advertises Tuesdays via Dots: PayPal, Venmo or bank; no minimum/platform deduction. Confirm country availability and contributor terms.
3 worker sourcesNewest dated source:

Baidu Crowdtest

Official site

Related names: 百度众测 · Baidu Zhongce

Baidu’s crowdsourcing platform for data annotation, image and voice collection, surveys and product testing, through individual and team tasks.

Data annotationData collectionResearch & studies
Pay
Task vouchers; the non-mainland bank-card route lists 50 vouchers = 1 yuan, after withholding and verification.
Where & terms
Online tasks plus selected field research; most in-person studies are in the Beijing area.
Screening
Some annotation projects require certification; some tests limit attempts.
Payment
Vouchers are exchanged for cash separately. Guide: usually issued in 5–10 days; annotation: around seven days after project closure, extended for rest days.
Official sources only

Braintrust AI Training

Official site

Related names: Braintrust

AI training network for expert feedback, annotation, writing, coding and model evaluation.

Data annotationDomain expertiseCoding & technical+2 more
Pay
Advertised examples: data labelling $20–45/hour, RLHF rating $25–60/hour, expert evaluation $60–150/hour, code work $75–200/hour. Currency unspecified.
Where & terms
Not recorded
Joining
Complete a profile and AI skills interview, then browse available tasks matched to your expertise.
Payment
AI page: weekly processing. July 2023 general terms: client-paid 15% platform fee; freelancer bears processor/withdrawal/conversion charges. General payment timing depends on client payment; confirm AI assignment terms.
Official sources onlyNewest dated source:

Cashmission

Official site

Related names: 캐시미션 · Cash Mission · SelectStar

SelectStar’s task platform for collecting photos, recording speech and labeling data for AI.

Data annotationData collection
Pay
Task points can be exchanged for cash without a conversion fee; no cash value per point is stated.
Where & terms
Not recorded
Joining
Age 14+ and identity verification with a mobile number in your own name. Supported phone countries are unspecified.
1 worker sourceNewest dated source:

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