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Cuckoo Labs

YC W25

Seoul, KR · Founded 2024 · 2 employees · 9 known investors

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Cuckoo is an AI-powered real-time translator that works within video conferencing, chat, and communication platforms to enable multilingual conversations for global teams. The platform serves organizations in sales, marketing, and support roles who need to communicate across languages and regions.

AI & Machine LearningEnterprise SoftwareSaaSArtificial IntelligenceB2BSalesMarketingSouth KoreaEast Asia

Founders & leadership· Y Combinator alumni (W25)

Cuckoo Labs was founded in 2024 by Yong Hee Lee and Gunwoo Kim.

YHYong Hee Lee
Yong Hee LeeCo-founder & CEOHe previously held go-to-market leadership roles at two Korean startups in programming education and AI infrastructure, and studied electrical engineering and science & technology policy at KAIST.
GKGunwoo Kim
Gunwoo KimCo-founder & CTO2024–2025Previously, he led engineering at a ride-hailing service in South Korea that reached one million users, and holds a degree in computer science from KAIST.

Investors · 9

Y Combinatorlisted by Y CombinatorSan Francisco · $500K

How we know: the Y Combinator directory · cm.asiae.co.kr · open dataset · 5k.vc investor directory · Not right? Tell us

Bass Investmentreported

How we know: Y Combinator's founder network · Not right? Tell us

BonAngels Venture PartnersreportedSeoul

How we know: cm.asiae.co.kr · Y Combinator's founder network · Not right? Tell us

Mashup Venturesreported

How we know: cm.asiae.co.kr · Y Combinator's founder network · Not right? Tell us

SAV (Scale Asia Ventures)reportedPalo Alto

How we know: Y Combinator's founder network · Not right? Tell us

Smilegate InvestmentreportedSeoul · $500K

How we know: cm.asiae.co.kr · Y Combinator's founder network · Not right? Tell us

Tekedia CapitalreportedLagos · $1K

How we know: Y Combinator's founder network · Not right? Tell us

Also in the syndicate · 1

Base Ventures

Funding

SEC filings, press & company announcements

Source: company announcements and press reports — follow each round's link for the claim.

The YC application· Winter 2025 batch

▶ Application video — watch on YC ↗

Related companies · 5

Imagine AIImagine AI builds a B2B content platform that helps founders and teams create and manage thought leadership content across social media. The platform combines AI-powered content drafting, persona research, voice replication, and analytics to generate inbound leads and qualified conversations.
Venu AIVenu automates event production and management for businesses looking to generate qualified sales leads through in-person networking events. The platform uses AI-powered matchmaking and logistics automation to help companies host high-quality events with minimal manual overhead.
YarnYarn is an AI-powered video creation platform that helps startup teams produce content at scale using generative talking heads, product demo automation, and AI-assisted editing. The platform serves sales, marketing, and go-to-market teams who need to create personalized video content quickly.
FrontrunnerFrontrunner is a platform for building AI agents that handle go-to-market tasks such as researching accounts, finding prospects, running campaigns, updating CRMs, and qualifying inbound leads. It connects to a company's existing systems and is aimed at sales and revenue teams.
LemonLimeLemonLime is an AI tool that automatically finds sales leads, drafts outreach emails, and creates branded marketing content for a company overnight, leaving the user to review and send. It targets businesses looking to automate their sales and marketing efforts.

Companies working in the same space as Cuckoo Labs.

Legal entities · 1

corporate structure
Cuckoo Labs, Inc.

In the news

Cuckoo: Real-time AI translator for global sales, marketing, and supportycombinator.com · Feb 2025

Frequently asked questions

What does Cuckoo Labs do?
Cuckoo is an AI-powered real-time translator that works within video conferencing, chat, and communication platforms to enable multilingual conversations for global teams. The platform serves organizations in sales, marketing, and support roles who need to communicate across languages and regions.
Who founded Cuckoo Labs?
Cuckoo Labs was founded by Yong Hee Lee, Gunwoo Kim in 2024.
Who are Cuckoo Labs's investors?
Cuckoo Labs's investors include Schmidt, Y Combinator, Bass Investment, BonAngels Venture Partners, Mashup Ventures, SAV (Scale Asia Ventures), Smilegate Investment, Tekedia Capital.
Where is Cuckoo Labs headquartered?
Cuckoo Labs is headquartered in Seoul, KR.