
The Frontier
Xiaomi's HySparse2 cuts million-token prefill compute fivefold
Xiaomi's model team previewed its next flagship with an architecture paper, and the numbers are about the bill the agent era runs up. Anthropic, meanwhile, wants its founders to keep control of the company after it lists. Xiaomi published HySparse2, the sparse-attention architecture its next flagship MiMo-V3 will use — claiming the design cuts prefill computation 5.02× at a million tokens versus the hybrid sliding-window attention in today's MiMo-V2 family. Long-running agents are input-dominat










