According to industry insiders' analysis, Google is developing an upgraded v9 chip, likely codenamed Triggerfish, based on TPU v9 (Humufish), with MediaTek exclusively securing this new, higher-priced order.
The key differences between this v9 variant and Humufish are: SRAM capacity is significantly increased to 2-3 times that of Humufish, a new simulation die is added, and memory is upgraded to HBM4E, versus HBM4 on Humufish.
On the one hand, the larger SRAM keeps more of the active working set required by RL and AI agents local to the TPU, reducing data-movement costs and improving efficiency in the ultra-low-latency decode stage.
On the other hand, beyond local TPU management and training/inference mode switching, the newly added simulation die’s likely role centers on reinforcement learning (RL) and AI-agent coordination.
With Humufish lifetime shipments still estimated at 4-5 million units, Google is adding an incremental Triggerfish order of 1-2 million units, with production expected to begin in late 2027 and ramp in volume in 2028.
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