Kai Liu

Kai Liu is a partner at 5Y Capital, where he has been recognized as one of the firm's standout younger-generation investors. In 2024, Forbes China listed him among the most noteworthy post-85 investors on its annual venture capitalist ranking , and he was named to the 2025 mid-year U40 outstanding young investors list .

His investment focus spans AI infrastructure, semiconductors, and enterprise software. He led 5Y's first semiconductor bet, backing Vastai Technologies at the angel stage in 2020 on the thesis that Chinese teams could build globally competitive AI chip companies . More recently, he has argued that AI entrepreneurship is still in its early innings despite surface-level hype, and that valuation discipline matters less than picking the right expanding market with a growing team—citing Sequoia's 2021 OpenAI investment at $15 billion as a case where seeming overpayment looked cheap in retrospect .

Liu evaluates product-market fit through hands-on product walkthroughs rather than pitch decks, looking for deliberate design decisions that hold up to scrutiny . He has also co-hosted programs with Agora to mentor real-time internet and AI startups , and spoken on Indonesia market expansion alongside portfolio founders .