Optimizing Local Inference: A Guide to the New WebGPU‑Accelerated Llama 4 Quantization Standards
Introduction Running large language models (LLMs) locally has traditionally required heavyweight GPUs, deep‑learning frameworks, and large amounts of RAM. The rise of WebGPU—the modern, cross‑platform graphics and compute API that supersedes WebGL—has opened a new frontier: high‑performance, browser‑based inference that can run on consumer hardware without native drivers. The recent release of Llama 4 (Meta’s fourth‑generation open‑source LLM) comes bundled with a new quantization standard specifically designed for WebGPU acceleration. This standard defines a set of integer‑based weight formats (int8, int4, and the emerging int2‑packed format) together with metadata that enables efficient GPU kernels written in WGSL (WebGPU Shading Language). ...