Lumen Acoustics · On-device Catalog Assistant

Hi — I'm the on-device assistant for the Lumen Acoustics catalog. Ask me about a product's price, battery life, codecs, colours, warranty, shipping or the return policy. Every answer is grounded in catalog.json and shows its source. If something isn't in the catalog, I'll tell you I don't know.

On-device model

Backend tier: —
Runtime: web-llm (MLC) 0.2.84
Model: Qwen2.5-0.5B-Instruct · q4f32_1
Catalog: —

Weights are bundled locally; after the runtime loads, the app runs fully offline.

Latest answer

Time to first token —

Throughput —

How answers stay trustworthy

Facts are retrieved from catalog.json and verified before display.
Each answer cites the exact product, spec field, policy or FAQ entry.
Out-of-scope questions get an honest “I don't know”.
No coupons, discounts or specs are ever invented.