SiliconFlow Raises Series C+ Funding to Expand AI Model-as-a-Service Platform

SiliconFlow Closes Series C+ Round

SiliconFlow, a Chinese AI infrastructure company, has raised a Series C+ round of funding. The round was announced on September 20, 2026. The funding amount was not disclosed.

What SiliconFlow Does

SiliconFlow operates a Model-as-a-Service (MaaS) platform that gives developers and enterprises unified API access to more than 160 open-source and proprietary models. The platform supports inference, fine-tuning, and deployment across text, image, video, and audio modalities.

Built on a self-developed inference engine and elastic GPU compute, SiliconFlow's "Token Factory" model runs mainstream models such as DeepSeek and Qwen across heterogeneous chips, including Nvidia, Ascend, MetaX, and Moore Threads.

Founded in 2023 by Yuan Jinhui, formerly of OneFlow, the company serves over 10 million users and 10,000 enterprise customers.

Investors

The Series C+ round includes participation from a broad group of investors:

• Jiantou Huake
• TRS
• Chain-leader Fund of China Mobile (中国移动链长基金)
• China Internet Investment Fund
• Tianchuang Capital
• Glory Ventures (耀途资本)
• Jiangxi Financial Holding Group
• China Orient Asset Management
• Huaan Jiaye (华安嘉业)
• Guotai Venture Capital (国泰创投)
• Guoxin Fund
• Chengdu Kechuangtou (成都科创投)
• Wise Road Capital
• 京能基金
• Beijing Innovation Industry Investment (北创投)
• Cuiwei Fund (翠微基金)
• Shanghai Yidian Intelligent Computing Fund (上海仪电智算基金)
• Chengdu Hi-tech Beite Fund (成都高新倍特基金)
• Zhongtai Capital (中泰资本)
• Teamsun (华胜天成)
• Unigroup Capital (紫光资本)
• Pengyao Environmental Protection (鹏鹞环保)
• Zhaoxun Technology (兆讯科技)
• Ruizhi Fund (睿智基金)
• Zhijun Capital (执君资本)
• Kandao Wuxin Fund (瞰道悟新基金)
• Shandong Tietou Chantou (山东铁投产投)
• Shandong Railway Fund (山东铁路基金)
• Shengyi Capital (盛奕资本)

No lead investor was named for the round.

Why It Matters

SiliconFlow sits at the intersection of AI infrastructure and enterprise adoption. Its MaaS platform lowers the barrier for developers and enterprises to access a wide range of models without managing underlying compute infrastructure. The company's ability to run models across heterogeneous chips is notable as demand for inference capacity continues to grow.

With more than 10 million users and 10,000 enterprise customers, SiliconFlow has established a significant footprint in the Chinese AI market. The Series C+ round brings together a mix of financial and strategic investors, including funds associated with China Mobile and other industrial players.

Acquisition Context

For acquirers and strategic investors, SiliconFlow represents a scaled AI infrastructure asset with a diversified model portfolio and a customer base spanning both developers and enterprises. The company's inference engine and multi-chip support could be attractive to parties looking to strengthen their AI serving capabilities or expand into the Chinese market.

The Series C+ stage indicates the company has moved beyond early commercialization and is focused on scaling its platform and customer base. The involvement of a large syndicate of investors suggests continued confidence in the company's trajectory.

Summary

• Company: SiliconFlow
• Sector: AI infrastructure / Model-as-a-Service
• Round: Series C+
• Date: September 20, 2026
• Amount: Not disclosed
• Lead investor: Not named
• Notable investors: Jiantou Huake, TRS, Chain-leader Fund of China Mobile, China Internet Investment Fund, Tianchuang Capital, Glory Ventures, and others
• Founders: Yuan Jinhui (formerly OneFlow)
• Founded: 2023
• Customers: 10,000+ enterprise customers, 10 million+ users