AI & Agents
YeongSil
Last updated 2026-07-10 · benchmark measured 2026-07-10 — deterministic & reproducible
YeongSil is a voice-first AI home device that sees, remembers, and acts on your behalf.
Is YeongSil production-ready?
Legit.Show ran its deterministic 7-Frame production-readiness benchmark on YeongSil (public-surface assessment), measured from the public surface with no LLM in the scoring path. Its strongest frame is Discoverability; its weakest is Privacy. The per-frame breakdown is public on the Legit.Show listing; the single overall production-readiness score is reserved for the verified maker.
The 7 Frames
- Performance — 74/100
- Accessibility — 94/100
- Security — 25/100
- Privacy — 0/100
- Reliability — 90/100
- Standards — 92/100
- Discoverability — 100/100
What we measured
- No Content-Security-Policy and no HSTS.
- Served over HTTPS with a valid certificate.
- Real Lighthouse performance run — 120 ms to first byte.
- Returns a proper 404 for unknown routes.
- 2 of 3 sampled routes reachable.
- No privacy policy found.
- Sets cookies / loads scripts with no consent prompt.
- Discoverable: structured data, sitemap, OpenGraph image, canonical URL.
Who it's for
Blind and visually impaired users · Elderly people · Screen-averse users · Accessibility-focused individuals · Smart home users
Pricing
$4.99/mo (basic with external LLM) or $14.99/mo (full with native LLM); custom enterprise plans available; early waitlist members get 30% off; hardware pre-order opens 2027