Kakao Brain vs LightOn

Neither company has publicly disclosed a valuation, making a definitive size comparison difficult. Kakao Brain employs 100-500 people, while LightOn has 1-50 employees.

Kakao Brain has raised more in total funding at $100M, compared to LightOn's $60M — a gap of $40M.

Kakao Brain holds the higher Awaira Score at 58/100, compared to LightOn's 55/100. The Awaira Score is a composite metric factoring in valuation, funding, stage, team size, and market presence — a 3-point gap that reflects meaningful differences in scale or traction.

Kakao Brain was founded by Kim Il-doo in 2017. LightOn was founded by Laurent Daudet in 2016. Visit each company's profile on Awaira for a full founder biography.

Kakao Brain: Kakao Brain is the AI research and foundation model division of Kakao Corp, the dominant Korean internet and messaging platform company, developing large language models including KoGPT for Korean language, the Karlo text-to-image generation model, and AI infrastructure for deploying AI capabilities across the Kakao platform ecosystem spanning KakaoTalk messaging, KakaoPay, and Kakao Mobility. The Seongnam company operates as a corporate AI research unit with internal funding from Kakao Corp.\n\nFunded internally through Kakao Corp with estimated investment exceeding $100 million across research infrastructure, compute, and personnel, Kakao Brain develops AI capabilities that are deployed to the KakaoTalk base of over 50 million monthly active users in Korea and across Kakao enterprise and government client deployments. The unit has released open-weight Korean language models through the Hugging Face platform, contributing to the Korean open-source AI ecosystem.\n\nKakao Brain competes in Korean AI research and model deployment with Naver AI, Samsung AI, and LG AI Research, as well as international AI labs whose models must be adapted for Korean language performance. Its integration with KakaoTalk provides a unique distribution mechanism for consumer AI features, as KakaoTalk functions as South Korea primary social communication platform and an essential interface for daily life services from banking to government. The corporate research structure gives Kakao Brain resources and stability but limits the commercial independence and equity-based talent attraction that independent foundation model startups use to recruit researchers. LightOn: LightOn develops large language model APIs and enterprise AI products for European organisations, building foundation model capabilities with a focus on European data sovereignty, multilingual performance, and on-premises deployment options that address GDPR compliance requirements for French and European corporate clients. The Paris company offers the Alfred enterprise AI assistant and LLM API infrastructure designed for deployment within private European cloud environments.\n\nThe company raised approximately $60 million including a Series B round from investors including BpiFrance and other European technology investors. LightOn has positioned itself as an alternative to US-based LLM API providers for European enterprises with strict data residency requirements, offering French-language performance and European regulatory compliance as primary differentiators. The company serves clients in banking, insurance, and public administration sectors where data sovereignty constraints limit the use of US-hosted AI services.\n\nLightOn competes in the European enterprise LLM market alongside Mistral AI, Aleph Alpha, and the European offerings of OpenAI, Google, and Microsoft Azure. The European sovereign AI market has attracted growing policy attention and funding as the EU AI Act and data localisation regulations create demand for AI infrastructure that can operate entirely within European jurisdiction. LightOn early focus on optical computing for AI workloads has evolved into a software-first model API and enterprise application strategy, reflecting the commercial viability challenges of novel hardware approaches to AI computation.

LightOn was founded first in 2016, giving it 1 year of additional market experience. Kakao Brain was founded later in 2017. In AI, even a year or two of head start can translate into significantly more training data, customer relationships, and institutional knowledge.

Kakao Brain has approximately 100-500 employees, while LightOn has approximately 1-50. A larger team often signals higher revenue or venture backing, but in AI, smaller teams are increasingly capable of building at scale.

Yes, Kakao Brain and LightOn are direct competitors — both operate in the Foundation Models space and likely target overlapping customer segments. This comparison is especially relevant for buyers evaluating both platforms.