Enable Gemma 4 MTP Speculative Decoding on iPhone
Melvin Vivas · X post · 2026-05-08 · Open on X
Topics: LLM Fundamentals, LLMOps, Deployment & Monitoring · Level: intermediate
Summary
Explains how to get faster Gemma 4 inference on an iPhone: turn on speculative decoding in the app's settings. Multi-Token Prediction (MTP) drafters can make Gemma 4 up to 3x faster on the phone.
Key points
- Gemma 4 supports Multi-Token Prediction (MTP) drafters.
- To use it on iPhone, turn on speculative decoding in settings.
- Speculative decoding can make on-device inference up to 3x faster.
Resources mentioned
- Gemma 4 · tool · ai.google.dev · free
Google's family of open-weight models in several sizes, built to run on devices and offline, with multimodal and agentic abilities, and open to fine-tuning.
Also in: Gemma 4 Runs Locally On-Device in the Antigravity SDK (Melvin Vivas on X · notes), On-Device AI: Running Gemma 4 E2B Offline on an iPhone with LiteRT (Melvin Vivas on X · notes), Running Gemma 4 Models Offline on an iPhone (Melvin Vivas on X · notes), Fine-tuning Gemma4-E2B on your own tweet style with Unsloth (Melvin Vivas on X · notes) and 25 more
Try this
- Turn on speculative decoding in settings when running Gemma 4 on an iPhone.
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