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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.
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

Closure announced: 30 Sep 2026

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

Data annotationLanguage & writingResearch & studies
Pay
Requesters set each task reward in USD. Approved completed tasks will follow normal payment schedules after the announced closure.
Where & terms
MTurk does not support US persons residing outside the US; this is its tax-status access rule.
Joining
Permanent closure announced for 30 September 2026. The documented account-request process does not confirm that new applications remain open.
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
Per approved task; annotation listing also advertises up to US$10/hour without defining the hour basis. Rates vary by region.
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.
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.
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.
Joining
Some annotation projects require certification; some tests limit attempts.
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.
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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