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Language data for AI training

Flitto DataLab: High-Quality Multilingual Data to Power AI Performance

Flitto DataLab provides high-quality multilingual datasets built through a global crowdsourcing platform of over 14 million users, powering real-world AI training across languages and industries. Experience the competitive advantage of Flitto’s trusted language data backed by scale, diversity, and precision.

Flitto DataLab: High-Quality Multilingual Data to Power AI Performance

Training AI engines with Flitto DataLab’s multilingual datasets means leveraging the contributions of 14 million users active on Flitto’s integrated crowdsourcing platform. Experience the power of Flitto’s high-quality language data that enhances AI-driven services across industries and languages.

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Why Choose Flitto DataLab?

Why choose Flitto DataLab?

A global platform of 14 million users

High-quality, up-to-date language data in diverse formats

Uncompromising quality, transparency, and compliance

End-to-End Data for AI Training & Evaluation (MLOps / LLMOps)

Flitto supports the full AI training pipeline with stable data collection and continuous feedback, helping accelerate model performance.

API Support for Automated AI Training

Flitto offers project-specific APIs for seamless automation of data upload, delivery, and integration.

API support for automated AI training

Flitto offers project-specific APIs for seamless automation of data upload, delivery, and integration.

Optimal Data for Reinforcement Learning

In reinforcement learning, quality matters as much as quantity. For low-resource languages such as Korean or Vietnamese, Flitto provides rich, high-fidelity datasets essential for meaningful AI advancement.

Optimal data for Reinforcement Learning (RL) in AI systems

Multilingual Corpus (Text Data)

Corpus data includes text from websites, books, and transcriptions across a wide range of domains, helping AI models learn linguistic diversity, nuance, and context.

Reward Feature & Data

Reward signal generation depends on the task. Flitto supports early-stage reward modeling using expert evaluators or heuristics.

Exploration & Interaction Data

For conversational AI, real interaction data is critical. Flitto delivers dialogue-based datasets that offer insights into real-world usage, tone, and flow—enabling more human-like chatbot training.

AI Data Solutions

Translation & NLP Data

Translation Corpus (Parallel Corpus)

Adequacy Test (AT)

Machine Translation Post-Editing (MTPE)

Speech & Utterance Data

Speech Synthesis Training Data

Scripted Utterance Data

Multi-Turn Conversational Utterance Data

Image-Text Data

Handwritten Image Dataset

Printed Text Image Dataset

Custom Text Image Dataset

Transcription & Metadata

Dialogue & Reasoning Data

Open-Domain Conversational Data

Topic and Intent Labeling for Dialogue Data

Natural Language Inference (NLI)

Response Evaluation

Data Labeling & Annotation

Data Labeling

Transcription Task

Paraphrase Generation

What Sets Flitto’s Language Data Apart?

What sets Flitto’s language data apart?

Accuracy

Proven 99.8% data accuracy based on NIA testing standards, with access to high-quality parallel corpora

Quality Assurance

Three-stage quality control system: Crowdsourcing → Professional Translators → QA Team ensures reliable, high-standard outputs

Confidentiality

Strict compliance with non-disclosure agreements (NDAs) to protect all project-related information

All data is copyright-safe and built to eliminate any intellectual property concerns

Quality Assurance Process

Specialist Management

All users are vetted and managed through project-specific PM certifications, peer evaluations, and performance-based incentives

5-Step Quality Control System

Flitto enables flexible, location-independent data collection

Three-stage on-platform review: QC1 → QC2 → QC3

Two additional expert reviews by PMs and domain specialists

Resulting in high-quality, multilingual language data

Licensing

All data is copyright-safe and built with explicit consent from crowdsourced users and translators during the creation process

Data Accuracy

High-quality, copyright-safe multilingual data with 99.8% proven accuracy

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Have Questions About Flitto's Services?

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Flitto Support

CEO

Simon Lee

CPO

Simon Lee

Business Registration Number

215-87-72878

E-Commerce Registration Number

2014-SeoulGangnam-02858

Addess

(06173) 6F, 20 Yeongdong-daero 96-gil, Gangnam-gu, Seoul, Republic of Korea

Flitto Support

CEO

Simon Lee

CPO

Simon Lee

E-Commerce Registration Number

2014-SeoulGangnam-02858

Business Registration Number

215-87-72878

Addess

(06173) 6F, 20 Yeongdong-daero 96-gil, Gangnam-gu, Seoul, Republic of Korea

Flitto Business Information

Flitto Support