Quantizing Gemma 4's MTP drafters

A while after Gemma 4 came out, Google released a set of Multi-Token-Prediction (MTP) drafters for it. Pairing a large model (the verifier ) with a tiny MTP drafter (the assistant ) enables speculative decoding: the small model guesses the next few tokens, and the big model verifies them in one parallel pass. When it works, the throughput gain is most of the way to free. To put it shortly: MTPs…