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Google's QAT Gemma 4 26B-A4B on One TPU v6e: 15.6x the KV Cache and 1.9x the Throughput of FP8

This article provides a step by step guide to serving Google's quantization-aware-trained (QAT) Gemma 4 26B-A4B on one Google Cloud TPU v6e chip with vLLM, and compares it with the FP8 build that is the only 26B serving on one chip today. Every per-record output, log and script is committed. The QA…

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  1. 2026-09-26 22:35 · DEV Community — Machine Learning
    Google's QAT Gemma 4 26B-A4B on One TPU v6e: 15.6x the KV Cache and 1.9x the Throughput of FP8

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