Korean AI Data Collection & Human Evaluation
Build and evaluate AI with real Korean people.
9colors helps global AI teams recruit Korean participants, collect natural language and speech data, and coordinate human feedback and localized testing in South Korea.
From recruitment to local project operations, we help bring native Korean voices and local perspectives into AI development.
Who we work with.
We support teams that need Korean participants, language data, or local human feedback.
AI data companies
For data providers and AI development partners seeking reliable local support for Korean-language projects.
- Korean participant recruitment
- Speech and conversational data collection
- Local data collection coordination
- Language reviewer recruitment
- Consent and project operations support
AI product teams
For companies developing AI products, assistants, or agents for Korean users.
- Korean user recruitment
- Scenario-based AI testing
- Human feedback on AI responses
- Korean-language quality review
- Localization and usability insights
Our AI data & evaluation services.
Local people, local market context, and practical project support.
- 01
Korean speech & conversational data
Recruit native Korean speakers and coordinate natural conversations, scripted recordings, and targeted speech collection projects.
We support participant screening, scheduling, communication, consent coordination, and local operations.
Explore speech data services → - 02
Human evaluation & language QA
Recruit and coordinate native Korean reviewers to assess AI responses for clarity, naturalness, cultural relevance, and task usefulness.
Evaluation workflows can be organized around your project’s criteria and requirements.
- 03
AI product & agent testing
Organize Korean user tests for AI assistants, conversational products, voice agents, and task-based AI workflows.
We help coordinate participants, testing scenarios, and structured user feedback.
- 04
Targeted recruitment & local operations
Recruit Korean participants across different demographics, including parents, families, consumers, small business owners, and professionals.
We support targeted recruitment, screening, participant communication, scheduling, and local project coordination.
Recruiting parents and families →
Project-specific Korean text and multimodal data collection can also be discussed based on scope, requirements, and available resources.
Why work with 9colors?
AI data projects need more than a list of contributors. They need people who understand the local market and can manage the work on the ground.
Access to targeted Korean participants
From parents and families to consumers, small business owners, and professionals, we connect global teams with relevant Korean participants through established local networks.
Local research experience
Hands-on experience supporting international research projects, including recruitment, moderation, interpretation, and participant coordination.
Flexible project support
Local operations tailored to your project’s participants, language requirements, timelines, and collection methods.
Channels we run ourselves
Separate channels, counted individually as of October 2026, not a combined participant count. Children take part only with guardian consent and within each project’s participation conditions.
- 15K+Members in our local parent community
- 12K+Followers on our community Instagram
- 150+Local parent creators in our network
Built on research experience. Active in AI data.
9colors has supported international research projects in South Korea, including participant recruitment, Korean-language moderation, and interpretation.
We are currently producing Korean conversational speech data for an international voice-data partner.
Building on our local fieldwork experience, we also take on Korean-language AI evaluation and localized testing projects—from participant recruitment to local project execution.
How we support your project.
Scope and the level of review are agreed for each project, based on the contract and your requirements.
- 1
Define
We review your project requirements, target participants, language needs, and deliverables.
- 2
Recruit
We identify and screen suitable Korean participants or contributors.
- 3
Coordinate
We manage local scheduling, communication, collection activities, and project logistics.
- 4
Deliver
We coordinate agreed deliverables, project-specific quality checks, and handover based on the defined scope.
Frequently asked questions.
- Do you provide ready-made Korean AI datasets?
- Our primary focus is project-based recruitment and data collection support. Custom data collection projects can be discussed based on your requirements, consent, and usage rights.
- Can you support Korean human evaluation projects?
- We can help recruit native Korean reviewers and coordinate evaluation activities based on your project’s criteria and requirements.
- Can you recruit specific Korean participant groups?
- Yes. We have experience recruiting targeted Korean consumer and business groups. Recruitment feasibility depends on the audience and project specifications.
- Do you support projects for companies outside South Korea?
- Yes. We work with international teams that need local recruitment and project support in South Korea.
- How do you handle participant consent and personal data?
- We coordinate participant consent and data handling based on project requirements, applicable laws, and agreed usage rights.Data retention, access, and deletion arrangements are defined according to the project scope and contractual terms.
Need Korean data or human feedback for your AI project?
Tell us what you’re building, who you need, and what you want to evaluate or collect. We’ll explore how 9colors can support your project in South Korea.