Google Open-Sources TPU Sync, a C++ KV-Cache Transfer Library for TPUs; Its Own Low-Concurrency Tests Report Average TTFT Cuts of 60% and 90%
Google says TPU Sync, an open-source C++ library for KV-cache transfer on TPUs, cut average TTFT 60% and 90% at low concurrency in internal July 2026 tests; its README says the APIs are evolving rapidly.