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SpacemiT M1 RISC-V system on a chip (SoC)

SpacemiT (Chinese: 进迭时空) is a computing-chip company based in Hangzhou, China, founded in 2021, which is focused on computer processors based on the architecture RISC-V to be used mainly in the area of artificial intelligence (AI CPUs).[1][2]

In 2024, the company unveiled the Muse Book laptop with the Bianbu OS operating system, based on its Key Stone K1 octa-core RISC-V chip.[3][4] In January 2025, it announced the development of a server processor with up to 64 RISC-V cores, named “VitalStone V100”, made on a 12nm-class process technology.[1][5][2] The VitalStone V100 supports virtualization, memory virtualization through an IOMMU which complies with the RISC-V architecture and the AXI4-Stream DTI interface.[1][5]

In July 2025, during the RISC-V Summit, the company announced a new system on chip (SoC), called SpacemiT K3, that will be based on the RVA23-profile-compliant X100 core. This core can be assembled in clusters of up to 64 cores.[6] The new SoC has been made available for end-users during the first semester of 2026[7].

Muse

Under their trademark Muse, SpacemiT also sells various electronic products, including clocks, audio devices, turntables, DVD players, and home appliance.[8][9][10]

References

  1. ^ a b c StringerAI™ (2025-01-09). “SpacemiT Develops Server CPU Chip V100 for Next-Gen AI Applications”. SDxCentral. Retrieved 2025-01-20.
  2. ^ a b SpacemiT. “RISC-V Breakthrough: SpacemiT Develops Server CPU Chip V100 for Next-Generation AI Applications”. www.prnewswire.com (Press release). Retrieved 2025-01-20.
  3. ^ Zachary, Leo (2024-04-30). “Muse Book laptop features SpacemiT K1 octa-core RISC-V AI processor, up to 16GB RAM – CNX Software”. CNX Software – Embedded Systems News. Retrieved 2025-01-20.
  4. ^ Jeff Butts (2024-05-03). “Chinese startup launching RISC-V laptop for devs and engineers priced at around $300”. Tom’s Hardware. Retrieved 2025-01-20.
  5. ^ a b Anton Shilov (2025-01-14). “China’s SpacemiT develops 64-core RISC-V datacenter CPU on 12nm”. Tom’s Hardware. Retrieved 2025-01-20.
  6. ^ Jean-Luc Aufranc (2025-07-22). “Three high-performance RISC-V processors to watch in H2 2025: UltraRISC UR-DP1000, Zhihe A210, and SpacemiT K3”. CNX-Software. Retrieved 2025-07-24.
  7. ^ “Chinese RISC-V Chipmaker SpacemiT Launches K3 AI CPU, Highlighting the Rise of Open-Source Hardware in Intelligent Computing”. Retrieved 2026-06-16.
  8. ^ “Trademark Status & Document Retrieval (TSDR)”. United States Patent and Trademark Office. Retrieved January 26, 2026.
  9. ^ “Marque EM : 019013977 – MUSE”. National Institute of Industrial Property (in French). Retrieved January 26, 2026.
  10. ^ “MUSE – Collection of inspiration”. Muse. Retrieved January 26, 2026.