llama.cpp adds TENSOR_READ_LAZY, MoE expert tensors no longer need to sit in VRAM

jacek2023 · reddit · 2026-08-27

A new llama.cpp PR #27794 by ngxson introduces a TENSORREADLAZY option in the model loader. The key benefit: for MoE models like Qwen3 Next, expert tensors (engrams) that are only needed when activated no longer have to stay resident in VRAM/RAM — they're loaded lazily on demand, substantially lowering the memory bar for running large sparse models locally.

Original post →

More from coding & agent

coding & agent channel →