What Flitto does

Flitto Inc. (KOSDAQ: 300080) is a Seoul-headquartered language data and AI translation company founded in 2012 that operates a dual platform combining multilingual AI training data production with real-time AI interpretation services. The company has built a 14 million-user crowdsourced platform (Flitto Arcade) across 173 countries that generates continuously refreshed language data across 90+ languages, feeding a proprietary five-step QC pipeline that delivers 99.8% annotation accuracy across text, speech, image, and video modalities. Its product portfolio is structured in three divisions: AI Data (foundational corpora, RLHF alignment data, frontier CoT/benchmark datasets, Data Marketplace with 245+ datasets available on Snowflake, DataLab custom data services); AI Solutions (Chat Translation, Chat Translation Enterprise, Live Translation, Image Translation); and Language Services (Flitto Translate, Pro Translator Matching with ~4,000 professional translators, Localization). The company also operates a RESTful Translation API offering AI, crowdsourced, and specialized business translation endpoints.

Flitto monetizes through five primary revenue streams: AI training data sales to global AI enterprises, professional translation and localization services, subscription and usage-based API/SaaS revenue, one-time dataset licensing via the Data Marketplace, and government-subsidized Data Voucher contracts in Korea (up to 45M KRW per project). Pricing is project-based with quotations delivered within 48 hours, supplemented by subscription billing for API and Data Voucher engagements. Its customer base includes anonymized 'Global Big Tech' anchor accounts (four disclosed, active 2021-2025), frontier-AI builder WBL (2025-2026 multi-phase contract), and Korean government agencies including the National Institute of Korean Language (six-year partnership 2021-2026) and NIA.

Flitto serves enterprise AI companies needing verified multilingual training data, mid-market and SMB businesses requiring translation and localization, Korean SMEs and startups via the government Data Voucher program, and event organizers requiring real-time interpretation. The company holds ISO 27001:2022 certification, is expanding into the US East Coast through South Korea's Ministry of Science and ICT AIIA program, and is participating in ASEAN market development through NIPA's CommunicAsia 2026 pavilion. Reported financials (KRW) show revenue tripling from ~7.8B KRW in 2021 to ~24.9B KRW in 2025 with EBITDA inflecting to positive territory in 2024-2025.

Name

Flitto

Legal name

Flitto Inc.

Website

https://flitto.com

Company type

Private

Founded year

2012

Operating status

Operating

Headcount range

101–250 employees

Short description

Flitto is a KOSDAQ-listed Korean language data and AI translation company that produces verified multilingual AI training data across 90+ languages via a 14M-user crowdsourced platform, and sells AI training datasets, translation APIs, and real-time interpretation services to global AI enterprises, businesses, and Korean government agencies.

Ownership category

akta.pro rank

Headquarters

HQ city

Seoul

HQ country

South Korea

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Software

Cost components

Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure

Revenue model

1. AI Training Data Sales: Sale of multilingual and multimodal AI training datasets including pre-training data, alignment data (RLHF), frontier data (benchmark, CoT reasoning, coding instructions), and custom dataset creation services to AI companies and research institutions.
2. Translation and Localization Services: Professional translation, proofreading, and localization services including 1:1 Pro Translation matching with professional translators, crowdsourced translation requests, and enterprise localization solutions.
3. API and SaaS Solutions: Translation API services provided as RESTful API including AI Translation API, Crowdsourced Translation API, and Specialized Business Translation API with subscription and usage-based pricing.
4. Data Marketplace: Direct sale of pre-built, verified AI training datasets through the data marketplace covering 245 datasets across various modalities (audio, image, text, video), domains, and languages.
5. Data Voucher Services: Participation in Korean government data voucher programs supporting AI data collection and processing for eligible businesses, with subsidies up to 45 million KRW.

Pricing tiers

Go-to-market motion3 records

Distribution channels6 records

Marketing channels6 records

Core offering

Flitto builds and sells multilingual AI training datasets (text, speech, image, video across 90+ languages) and AI-powered translation/interpretation solutions. Revenue is generated through custom dataset creation for AI companies, a self-serve Data Marketplace of 245+ pre-built datasets, a Translation REST API, real-time interpretation products (Chat Translation, Live Translation, Image Translation), and professional human translation services via a network of 3,000+ verified translators and 14 million crowd contributors.

Product overview

Flitto is a multilingual AI data and real-time interpretation solution company operating as a platform-plus-modules architecture. The core platform comprises three divisions: (1) AI Data — providing multilingual and multimodal training data (text, speech, image, video) for foundational AI, alignment, and frontier model training through the AI Data portal, Data Marketplace (245+ datasets), DataLab, and Data Voucher program; (2) AI Solutions — delivering real-time translation and interpretation through Chat Translation, Chat Translation Enterprise, Live Translation, and Image Translation; and (3) Language Services — encompassing Flitto Translate (AI+crowdsourced text translation), Pro Translator Matching (professional human translators), and Localization. Supporting infrastructure includes Flitto Arcade (crowdsourced data collection via 14M users), an API Solution for developer integration, and Place for location-based multilingual communication. The platform covers 90+ languages with a five-step QC pipeline delivering 99.8% annotation accuracy.

Differentiator

Problem solved

Functional benefit

Brands

• Flitto Arcade: Interactive language mission platform where users earn points by completing missions and can redeem for cash or mobile gift vouchers
• Chat Translation
• Chat Translation Enterprise
• Live Translation
• Image Translation
• Flitto Translate
• DataLab
• Data Marketplace
• Data Voucher
• API Solution

Products and services

• AI Data Multilingual and multimodal AI training data platform providing text, speech, image, and video datasets for foundational AI, alignment, and frontier model training. Includes Foundational Data (multilingual corpus, voice & speech, image & OCR, coding corpus), Alignment Data (RLHF preference, conformity QA, multi-turn dialogue, safety & bias), and Frontier Data (benchmark, CoT reasoning, coding instructions, domain adapters). Delivered via a global crowd platform of 14M users across 173 countries with 99.8% accuracy across 90+ languages.
• Data Marketplace Online catalog of 245+ verified, licensed AI training datasets available for immediate download or inquiry. Covers pre-training, fine-tuning, alignment, evaluation, and frontier data across audio, image, text, and video modalities across multiple languages and domains. Distributed via Snowflake.
• DataLab Enterprise-focused platform for AI data solutions including custom dataset building, data collection strategy design, and expert validation for specific model requirements and use cases. Used by AI teams needing bespoke dataset creation.
• Chat Translation AI-powered translation and interpretation solution using advanced AI and speech recognition to analyze context and deliver optimized real-time multilingual chat translation results. Designed for individual users needing conversational translation.
• Chat Translation Enterprise Enterprise-grade real-time face-to-face multilingual communication solution with fast, accurate translation delivered through transparent display interfaces, designed for natural visitor interactions at business sites.
• Live Translation Real-time multilingual translation solution built for global events, supporting seamless communication across conferences, seminars, fan meetings, and concerts.
• Image Translation One-stop AI translation solution for images that handles everything from localization to final design output in a single workflow, transforming image content across languages.
• Flitto Translate AI plus real-time translation platform allowing users to compare AI-generated and crowdsourced translation outputs, route tasks to professional translators, and access text translation, proofreading, and tone/style customization across Academy, Business, News, Marketing, Literature, and Conversation categories.
• Pro Translator Matching Platform connecting users with approximately 4,000 professional translators across 173 countries for 1:1 professional translation requests. Supports translation, proofreading, and editing with real-time chat, file format flexibility, and confidentiality policies.
• Flitto Arcade Interactive language mission platform powered by 14M global users for collecting real-world language data through structured tasks and validation workflows. Contributors complete missions to earn points redeemable for cash or mobile gift vouchers.
• Translation API Solution RESTful API providing Flitto's translation services: AI Translation (neural network engine trained on 20 million sentences), Crowdsourced Translation (3M professional translators), and Specialized Business Translation (sector-specific on business-exclusive servers). Supports flexible integration across programming languages with continuous learning.
• Data Voucher Program Korean government data voucher support program where Flitto serves as an authorized supplier, providing text, voice, image, and video AI training data to qualifying businesses (startups, SMEs, research institutions). Offers up to 45 million KRW in government subsidies for AI data construction projects.
• Place AI-powered multilingual place listing and location-based translation service for businesses and travelers navigating multilingual environments.
• Localization Services Expert localization service across domains including corporate documents and creative content, supported by verified linguists and dedicated project managers, integrating AI and human experts for precision localization.

Quantifiable outcome

• 99.8% annotation accuracy across all languages and modalities through five-step QC pipeline
• +4 more outcomes

Named customers7 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

AI capability10 records

Feature7 records

Partnerships

Six partnerships are on record, tiered flagship and core.

• NIPA (National Information Society Agency)flagshipStrategic or Co-development Partner · 29 May 2026NIPA (Korea's government-affiliated IT promotion agency) organized the K-Digital Contents Pavilion at CommunicAsia 2026 in Singapore where Flitto participated alongside six other Korean digital content companies to showcase AI-powered language technology to global and ASEAN markets.
• South Korea Ministry of Science and ICTflagshipStrategic or Co-development Partner · 11 December 2025Flitto is expanding its presence in the US East Coast through participation in the AI and Digital Business Partnership Program (AIIA) led by South Korea's Ministry of Science and ICT, leveraging partnerships and data-driven strategies to increase market share and revenue.
• National Institute of Korean LanguagecoreStrategic or Co-development PartnerSix-year partnership (2021-2026) for Korean-Foreign Language Parallel Corpus Development, contributing to digital transformation of national language assets through Korean-multilingual parallel corpora including low-resource languages.
• WBLcoreStrategic or Co-development PartnerEnd-to-end data operations partnership for proprietary AI foundation model projects, supplying multimodal and high-complexity data pipelines optimized for model performance. Phase 1 (2025.08.14-2025.12.31) and Phase 2 (2026.01.01-2026.06.30).
• NIA (National Information Society Agency)coreStrategic or Co-development PartnerEU Personal Data Benchmark Dataset project delivering global regulatory-compliance data solutions through multilingual data refinement, expert review, and specialized terminology dictionary development.
• Korean Government Data Voucher ProgramcoreGTM or Marketing PartnerFlitto is an authorized supplier in the Korean government's 2025 Data Voucher program, offering AI data collection and processing services with government subsidies up to 45 million KRW for eligible businesses including SMEs, startups, and universities.

Scale indicators10 records

Recent moves3 records

Expansion highlights6 records

Direct peers

• Unbabel: Unbabel combines AI translation with human post-editing for enterprise localization and customer support. It competes directly with Flitto's API Solution and crowdsourced translation offerings in the AI-powered language services category.
• Rev: Rev offers AI and human-powered transcription, captioning, and translation services through a crowdsourced network of freelancers. Its crowdsourced language services model is structurally similar to Flitto's Arcade and 1:1 Pro Translation marketplace.
• Scale AI: Scale AI provides high-quality training data, RLHF, and evaluation services for foundation model developers. It competes head-to-head with Flitto in delivering human-annotated datasets to enterprise AI customers and frontier model labs.
• Smartling: Smartling provides a cloud-based translation management platform and AI-powered localization services for enterprises. It overlaps with Flitto's enterprise translation, API, and localization offerings, particularly for digital content workflows.
• iMerit: iMerit provides data annotation, labeling, and content services for AI/ML pipelines across multiple modalities and languages. It competes with Flitto's AI Data services for enterprise data labeling contracts, particularly in specialized domains.
• Defined.ai: Defined.ai operates a data marketplace offering pre-built datasets for AI training, including speech, text, and multilingual corpora. Its marketplace model and dataset catalog directly mirror Flitto's Data Marketplace product.
• Appen: Appen is a global leader in training data for AI, offering data annotation, collection, and evaluation services across text, image, audio, and video. It directly competes with Flitto's AI Data business, especially in multilingual data and RLHF for foundation model training.

Broad incumbents

• RWS Group: RWS is a major language services and intellectual property services provider offering translation, localization, and AI data services globally. It is a broad incumbent that overlaps with Flitto's professional translation and enterprise localization businesses.
• Lionbridge AI: Lionbridge is a large incumbent in translation, localization, and AI data services with global enterprise reach. It competes broadly with Flitto across professional translation and AI training data, though it does not focus specifically on Korean-language or Asian-market opportunities.

Regional players

• Transn (or iFlytek for Asian speech AI): iFlytek is a leading Asian speech and language AI company with strong multilingual and Asian-market capabilities. While it primarily serves Chinese-language and speech-AI markets, it is a relevant regional comparable for Flitto's speech-data and Asian-language enterprise offerings.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks1 record

Key highlights7 records

Customer concentration

• Facebookfacebook.com/flitto
• Instagraminstagram.com/flitto_official
• Xx.com/flitto_inc
• LinkedInlinkedin.com/company/flitto

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds6 records

Investors10 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Flitto