TPU · Tensor Processing Unit
Google's custom AI accelerator chip, built around a systolic array for matrix math and used across its cloud and models.
Current numbers
9,600 chipsTPU 8t torus, announced 2026-04-22
1,024 active chips (1,152 connected)TPU 8i Boardfly pod, active chips (more are wired), announced 2026-04-22
≤3 hopsDragonfly worst-case router hops; Google’s announced TPU 8i Boardfly shortens a 1,024-chip pod from 16 to 7 chip hops