YuE2 music model with full CoT runs on iPhone in just 1.7GB of memory

Acceptable-Cycle4645 · reddit · 2026-09-25

Developer 0xShug0 demoed running YuE2 (ABC codec + full chain-of-thought) on an iPhone with only 1.7GB of memory, pushing the music generation model's VRAM usage to an extreme for on-device inference. The optimization code is open-sourced in the yue2-optimizations branch of the audio.cpp repo on GitHub.

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