kapynOpen Source

mimalloc: A new, high-performance, scalable memory allocator for the modern era

mimalloc is a new, high-performance memory allocator available as open-source. This drop-in replacement for malloc/free offers bounded allocation times, low overhead, and minimal contention, making it ideal for demanding AI workloads. Its small codebase and clear design simplify integration into existing projects.

Microsoft Research·May 13, 2026

Opening Kapyn…