Blog · 2026-07-28

Why we keep the vision encoder on CPU

Engineering note: multimodal image encoding stays on CPU in LlamaBox so the UI remains responsive on every Android device.

A lens and processor connect directly to a phone for local visual processing.

Multimodal models tempt many mobile AI apps to reach for GPU acceleration. LlamaBox is CPU by default; experimental acceleration may be available on supported devices.

Today LlamaBox runs text generation on CPU threads and keeps the vision encoder on CPU so the interface stays responsive under memory pressure. A frozen UI is a product bug, not a benchmark flex.

CPU-first scope

Keeping inference on CPU removes driver fragmentation and lets LlamaBox target the widest range of Android devices. Read architecture and llms.txt.

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