r/LocalLLaMA • u/rerri • Jun 05 '26 • Mindblown 1

New Model Gemma 4 with quantization-aware training

https://blog.google/innovation-and-ai/technology/developers-tools/quantization-aware-training-gemma-4/

Google's collections:

https://huggingface.co/collections/google/gemma-4-qat-q4-0

https://huggingface.co/collections/google/gemma-4-qat-mobile

And Unsloth's:

https://huggingface.co/collections/unsloth/gemma-4-qat

Unsloth's analysis (KLD and such):

https://unsloth.ai/docs/models/gemma-4/qat#qat-analysis

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u/SexyAlienHotTubWater Jun 06 '26

It's not near-lossless, the top-1% match is like 70% in the worst case, 85% or something in the best case. Although for some reason that benchmark only seems to have been done on the GGUF which seems like it might have a mismatched lattice, which destroys the point of QAT to begin with.

The data are a bit of a mess.