SpacemiT

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]

SpacemiT Hangzhou Technology, Co.

Company type	Private
Industry	RISC-V Microprocessors
Founded	2021; 4 years ago (2021)
Headquarters	Hangzhou, China
Products	CPU design, System on a chip
Website	spacemit.com

SpacemiT M1 RISC-V SoC

In 2024, it 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 core, named "VitalStone V100", made on a 12nm-class process technology.^[1][5][2] 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 Jully 2025, during the RISC-V Summit, they announced a new Soc, called SpacemIT K3, that will be based on the RVA23 compliant X100 core. This core can be made in cluster up to 64 cores. The new SoC would be available for end-users in 2026^[6]