SiliconFlow
About SiliconFlow
SiliconFlow is a AI Infrastructure startup based in Beijing, China that has raised $370M in venture capital across 4 funding rounds since 2023. The company reached Series B stage in January 2024 with a $6.9M round led by Sinovation Ventures. SiliconFlow's investor base includes 23 institutional funds, with Sinovation Ventures leading the most recent equity round.
SiliconFlow (硅基流动, full legal name Beijing Sidong Technology Co., Ltd.) is a Beijing-based AI infrastructure company founded in August 2023 by Dr. Yuan Jinhui and Pan Yang. The company operates SiliconCloud, a one-stop large model API cloud service platform that aggregates 160+ open-source AI models — including DeepSeek-R1/V3, GLM, Qwen, and Stable Diffusion — and exposes them via standardized APIs for developers and enterprises. SiliconFlow's core technology centers on high-performance LLM inference optimization for both NVIDIA and domestic AI chips (Huawei Ascend, Biren), enabling significant cost reductions for model deployment. The platform processes approximately 1 trillion tokens daily and has surpassed 3 million registered users since launching in April 2024. SiliconFlow became China's first API provider for DeepSeek-R1, experiencing a 30-fold traffic surge within 10 days of the model's release. The company raised a $294 million Series B round in June 2026, backed by a consortium of strategic and financial investors including Trip.com Group, SenseTime, NIO Capital, China Unicom, and GGV Capital, bringing its total funding to approximately $370 million across four rounds in under three years.
SiliconFlow Funding Rounds Timeline
4 rounds · $370M raised · since 2023
| Round | Date | Amount | Valuation | Lead investor | Co-investors |
|---|---|---|---|---|---|
| Angel | January 2024 | $6.9M | — | Sinovation Ventures | Wang Huiwen |
| Pre-A | February 2025 | $14M | — | China Growth Capital | Puhua Capital, Glory Ventures, Meituan |
| Series A | June 2025 | $55M | — | Alibaba Cloud | Sinovation Ventures, China Growth Capital, Puhua Capital, Glory Ventures, Meituan |
| Series B | June 2026 | $294M | — | — | Ctrip Investment, Giant Network, Guotai Junan Innovation Investment, SenseTime, NIO Capital, China Unicom, JinkoSolar, Kingdee, Biren Technology, GGV Capital, Huaxi Ruideng, Huakong Fund, China Development Financial, Beigong Investment, Zhongguancun Science City, Shengyi Capital |
Investors in SiliconFlow
23 institutional investors across 4 rounds
Lead investors
Co-investors
Recent news about SiliconFlow
Questions about SiliconFlow
How much has SiliconFlow raised?
SiliconFlow has raised $370M across 4 funding rounds since 2023.
Who are the investors of SiliconFlow?
SiliconFlow's investors include Sinovation Ventures, China Growth Capital, Alibaba Cloud, Puhua Capital, Meituan, NIO Capital, SenseTime, Ctrip Investment, Giant Network, Guotai Junan Innovation Investment, China Unicom, JinkoSolar, Kingdee, Biren Technology, GGV Capital, Huakong Fund, Shengyi Capital, Glory Ventures, Wang Huiwen, Huaxi Ruideng, China Development Financial, Beigong Investment, Zhongguancun Science City.
When was SiliconFlow's last funding round?
SiliconFlow's most recent round was a $6.9M Angel in January 2024, led by Sinovation Ventures.
Where is SiliconFlow headquartered?
SiliconFlow is headquartered in Beijing, China, and was founded in 2023 by Yuan Jinhui, Pan Yang.