Browser AI 2026: On-Device Models with WebGPU & LiteRT.js

Running AI models directly in the browser is finally fast enough to be real. A practical 2026 guide to on-device inference with WebGPU and Google’s new LiteRT.js runtime — what changed, how it works, and when to reach for it.

For years, “AI in the browser” meant one of two things: a slow demo that melted your laptop fan, or a fetch() call to someone else’s server. The model never really ran on the page — it ran in a data center, and your users’ data went with it.

Full deep-dive — Run real AI models in the browser in 2026 — on-device, private, server-free. A practical look at WebGPU and Google’s new LiteRT.js runtime:

👉 alekseialeinikov.com/en/blog/topics/ai/browser-ai-webgpu-litert-js-2026

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👉 alekseialeinikov.com/en/blog