For decades, accessing the architecture required to design cutting-edge high-end computer chips has come at a prohibitive cost: millions of dollars in mandatory licensing fees locked most early-stage startups out of the industry, creating an uneven playing field dominated by a small handful of proprietary technology holders. Today, a game-changing open standard called RISC-V instruction set architecture is rapidly growing in global traction, offering a free, collaborative alternative to the closed, costly proprietary models that have long defined the sector.
During the 2026 Zhongguancun Forum, China’s premier annual event for showcasing top national scientific and technological advances held in Beijing last week, industry and research leaders announced that China has successfully built out a complete, end-to-end RISC-V ecosystem. This integrated network spans from foundational technological innovation to full-scale industrial implementation, establishing China as a key global contributor to the worldwide push for more accessible, autonomous computing infrastructure.
To simplify how RISC-V works, an instruction set architecture can be thought of as the core “dictionary” that allows chips to function. Just as humans rely on dictionaries to understand and use words, a chip depends on this set of standard instructions to interpret and run software commands. While legacy architectures such as Intel and AMD-controlled x86 charge steep licensing fees and ban users from modifying the core design, RISC-V operates on an open-source model that grants anyone the right to freely use, alter, and build on the existing framework.
At a side event held alongside the main forum, the Chinese Academy of Sciences (CAS) unveiled two landmark new developments that complete the domestic ecosystem. The first is Xiangshan, an open-source processor platform that acts as the high-performance hardware core of the ecosystem. The second is open-Ruyi, a domestically developed operating system built from the ground up exclusively to run on the Xiangshan hardware.
As modern computing continues to evolve, simply increasing a chip’s raw clock speed is no longer enough to meet growing demand. The central challenge today is scalable computing: the ability to manage massive volumes of concurrent tasks and distribute processing power efficiently across complex networks. This makes high-performance processor cores the “command centers” that determine a computing system’s overall speed and functionality.
According to Bao Yungang, deputy director of the CAS Institute of Computing Technology, the Xiangshan core currently ranks as the most powerful open-source RISC-V processor available globally. In the SPEC CPU2006 industry benchmark test, the standard for measuring processor performance, the Xiangshan core hits 16.5 points per gigahertz — a score that reflects exceptional efficiency when handling complex computational tasks. Bao added that the Xiangshan-openRuyi pairing creates a reinforcing feedback loop, where technological development responds directly to industry needs, and real-world application in turn drives further innovation. He also noted that the Xiangshan core is already deployed in key sectors including artificial intelligence, cloud computing, and industrial controls.
Unlike traditional chip development workflows, where software is retrofitted to match existing hardware — a process that often creates unnecessary inefficiencies, open-Ruyi was designed from its inception to align perfectly with the Xiangshan core’s unique technical specifications, explained Wu Yanjun, deputy director of the CAS Institute of Software. This native alignment unlocks full performance potential, as the synergy between hardware and software is critical to maximizing processing power, Wu noted.
To lower the barrier for third-party developers and enterprises to join the ecosystem, CAS also launched the RuyiSDK, a comprehensive software development kit that acts as a one-stop resource for engineers. The toolkit provides all the pre-built tools, documentation, and frameworks developers need to build custom software for the platform, eliminating the need to start development from scratch.
Beyond accessibility and innovation, the shift to open-source chip architecture also addresses growing global concerns over supply chain security, offering a path for countries and companies to avoid being cut off from critical computing technology due to trade disputes, export restrictions, or exploitative pricing. Liu Yanan, chip technology director at China Mobile (Suzhou) Software Technology Co., explained that the long-term goal of the ecosystem is to deliver an autonomous, cost-effective computing infrastructure that can meet the wide range of processing demands created by the fast-growing global digital economy.
To date, CAS has assembled one of the world’s largest RISC-V research and development cohorts, with more than 600 hardware-focused researchers and 400 software engineers working on the project. Its global open talent and development programs have already drawn more than 27,000 participants from over 1,100 universities across the world, marking a clear shift toward a more inclusive, collaborative global model for the future of semiconductor development.