Luke KimKeeho ParkMohammed bin SalmanJinwoo KimAtinum InvestmentLB InvestmentDaishin SecuritiesOpenAIFast CompanyKB SecuritiesHumeynInterVestAndreessen HorowitzKorea Development BankSTIC VenturesHUMAINCJ InvestmentLinerHelios Private Equity

AI agent startup Liner raises $36.1M Series C led by LB Investment; plans R&D push to keep edge in AI search

AI agent startup Liner has raised $36.1 million in a Series C funding round led by LB Investment, bringing its total funding to approximately $71 million. The company plans to invest in R&D to enhance its AI search capabilities, which have already outperformed major competitors like OpenAI's GPT-4.

Wowtale+1 source25 August 2026 · 21:52 UTC
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AI agent startup Liner announced on August 25 that it has secured $36.1 million in a Series C funding round led by LB Investment, with participation from existing shareholders and new investors like Korea Development Bank. This funding brings Liner's total to approximately $71 million over its funding history.1

The company plans to focus the Series C investment on R&D to enhance its technological edge in AI search. Liner's proprietary technology has already demonstrated its capabilities, scoring 95.3 points on OpenAI's SimpleQA Benchmark and outperforming GPT-4 in search-response generation.

Liner currently serves 14 million users across 220 countries, including the U.S., Europe, India, and Southeast Asia. As of late July 2026, it ranked 30th in global AI service web traffic, ahead of competitors like Poe and Mistral AI. Liner is also the only South Korean AI startup to be featured on Andreessen Horowitz’s Top 100 GenAI Consumer Apps list for four consecutive years since 2024.4

CEO Luke Kim emphasized that this investment is a strategic foundation for securing world-class infrastructure and talent, essential for reliability in AI agents. He stated, “Rather than depending on short-term, marketing-driven expansion, we are focused on establishing a self-sustaining business model that builds lasting value through technological leadership.”

Liner's technology has been validated through partnerships, such as supplying its AI search engine to HUMAIN, a Saudi Arabian AI corporation chaired by Crown Prince Mohammed bin Salman, after a rigorous benchmarking process against global tech firms.

Key Insight
“Liner scored 95.3 on OpenAI's SimpleQA benchmark and outperformed GPT-4 in search-response generation, validating its proprietary tech. The company serves 14 million users across 220 countries and ranks 30th in global AI web traffic, ahead of Poe and Mistral AI.”
CuriousCats studied:
1
Wowtale
“Global AI agent startup announced on August 25 that it has secured USD 38 million (50 billion won) in funding.”
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2
GlobeNewswireGlobeNewswire
“Global AI agent startup Liner (CEO Luke Kim) announced on August 25th that it has raised $36.1 million in a Series C funding round.”
GlobeNewswire →
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