The core difference
SaaS prompt-firewalls sit between your user and the LLM in their cloud. Your prompt transits their infrastructure — often in cleartext — so they can classify and redact. Trinito runs redaction on an appliance on your LAN. The only place original prompt and original response meet is hardware you own.
Comparison
| SaaS prompt-firewall | Trinito AI Gateway | |
|---|---|---|
| Where inspection runs | Vendor cloud (often US) | Your office |
| Who sees cleartext | Vendor (briefly, by design) | You — on the appliance |
| Audit log custody | Vendor SaaS | Your appliance, exportable CSV |
| Enforcement surface | Browser agent / proxy | Network gateway + chat UI + API |
| Commercial model | Per-seat annual contract | Capex appliance + optional Trinito Cloud |
| UK SMB fit | Enterprise security teams | 30–150 seat IT/compliance buyer |
When SaaS wins
You are a global enterprise with a mature SSE stack, US legal comfortable with another US processor, and procurement already standardised on cloud security vendors. You want zero hardware in the office.
When Trinito wins
You need to tell a UK client or regulator that inspection happens in-country on your kit, you want logs on hardware you control, and you prefer capex plus a modest monthly to per-seat SaaS creep. Read the longer buyer's guide or compare Microsoft Purview.