Yin Qi, an experienced AI entrepreneur, is accelerating StepFun toward a Hong Kong stock listing by completing a $2.5 billion financing round and restructuring the company in record time, aiming to become China's third publicly traded large language model company. This aggressive capital push reflects a fundamental shift in how quickly AI startups can scale in the current market, where investor confidence in foundation models has created unprecedented funding velocity.

What Happened to China's Previous AI Startup Generation?

Yin Qi's current ambitions stand in stark contrast to his earlier venture, Megvii Technology, which spent five and a half years attempting to go public. The company submitted its prospectus to the Hong Kong Stock Exchange in August 2019, switched to China's STAR Market, got stuck in the registration stage, and finally withdrew its application in November 2024 with nothing to show for the effort. This painful experience illustrates how dramatically the AI landscape has shifted in just a few years.

The broader context reveals a generational collapse among China's earlier AI champions. The so-called "Four Little Dragons" of computer vision and AI, which once dominated the sector, have largely fallen behind in the race toward large language models. Their struggles highlight a critical lesson: success in the AI 1.0 era of specialized algorithms did not translate to dominance in the AI 2.0 era of foundation models.

• Megvii Technology: Spent 14 billion yuan and accumulated 15 billion yuan in losses over five years, ultimately failing to achieve an IPO despite multiple attempts
• CloudWalk Technology: Now valued at only one-twentieth of Zhipu AI's market capitalization, representing a dramatic loss of competitive standing
• Yitu Technology: Experienced complete business line collapse and saw its president depart, effectively exiting the AI race

Yin Qi recognized this existential threat and made a decisive pivot. In January 2026, he announced his appointment as chairman of StepFun, a large language model company established less than three years earlier. On the same day, StepFun announced completion of a Series B+ financing round exceeding 5 billion yuan, immediately setting a single-round financing record for domestic large-model companies.

How Is StepFun Accelerating Its Path to Public Markets?

The speed of StepFun's capital operations is remarkable. In May 2026, the company completed a financing round of nearly $2.5 billion, surpassing the previous $2 billion financing of Kimi and setting a new record for the largest single financing of a large-model company in China. Simultaneously, the company executed structural changes that are standard prerequisites for Hong Kong Stock Exchange listing.

These preparatory steps include dismantling the red-chip structure, completing shareholding reform, and increasing registered capital from 23.94 million yuan to 56.26 million yuan, a 135 percent increase. The company also transitioned from a limited liability structure to a joint-stock limited company. StepFun plans to submit its prospectus to the Hong Kong Stock Exchange before June 30, 2026, with expectations to list as early as the end of the year, positioning itself as the third domestic large-model stock after Zhipu and MiniMax.

The contrast with Megvii's timeline is striking. What took Megvii five and a half years to attempt, StepFun completed in five months. This acceleration reflects both the maturation of China's capital markets for AI companies and the urgency investors feel about capturing positions in the foundation model space before the competitive landscape solidifies.

Steps to Understanding the New AI Funding Landscape

• Investor Confidence Surge: Major institutional investors including Shanghai state-owned assets, Tencent, Matrix Partners, and state-owned capital from multiple regions are placing large-scale bets on foundation model companies, indicating broad confidence in the sector's commercial viability
• Valuation Escalation: The capital echelon of domestic large-model companies has become increasingly clear, with Zhipu and MiniMax leading at market values exceeding 400 billion and 230 billion Hong Kong dollars respectively, while StepFun and Kimi follow closely behind
• Timeline Compression: The shift from multi-year IPO processes to five-month preparation cycles reflects how quickly the AI market is consolidating and how aggressively capital is moving to secure positions
• Competitive Pressure: DeepSeek is reportedly conducting a first-round financing of 50 billion yuan with a potential post-investment valuation reaching $45 billion, demonstrating that competition for capital and market position remains intense

Yin Qi has publicly articulated a strategic philosophy to justify this aggressive capital push. He frequently emphasizes what he calls his "closed-loop theory" in public appearances. The core argument is that globally, the pattern of basic large models is largely set, making it difficult for new leading enterprises to emerge. Instead, the path forward for existing players involves finding exclusive scenarios and completing commercial closed-loop implementation within those niches.

This theory suggests that the competitive advantage in foundation models will increasingly depend on vertical integration and domain-specific applications rather than raw model capability. For StepFun, this means the company must move quickly to establish market position before the window for new entrants closes. The urgency explains both the scale of capital being deployed and the compressed timeline for going public.

The broader capital environment is supporting this aggressive strategy. In May 2026 alone, news of sky-high financing rounds for large-model companies frequently made headlines. Kimi completed a new round of approximately $2 billion with a post-investment valuation exceeding $20 billion. DeepSeek's fundraising ability proved even stronger, with market reports indicating a first-round financing plan of 50 billion yuan and potential post-investment valuation as high as $45 billion.

Yin Qi's other major venture, Qianli Technology, where he serves as chairman and second-largest shareholder, is also pursuing aggressive capital expansion. The company submitted its prospectus for the second time on April 23, continuing to promote its second listing on the Hong Kong Stock Exchange with plans to raise $1 billion. This dual-track approach, with StepFun focused on foundation models and Qianli Technology addressing the "AI plus vehicle" business puzzle, represents a diversified bet on multiple segments of the AI economy.

The stakes for Yin Qi are personal and professional. After suffering through the five-year ordeal with Megvii, he has positioned himself to capitalize on the current AI bull market by moving with unprecedented speed and scale. Whether StepFun can overcome its current position as a second-tier player in the market compared to competitors like MiniMax, Kimi, and DeepSeek remains an open question. However, the capital confidence in Yin Qi himself appears unshakeable, with investors demonstrating what he described in external interviews as "indescribable and even incomprehensible absolute confidence" in his leadership.

The outcome of StepFun's Hong Kong listing will serve as a crucial test case for whether capital velocity and founder reputation can overcome product market position in the foundation model space, or whether the companies with superior models will ultimately command the highest valuations and most sustainable competitive advantages.