Who has Purview AI features
| M365 plan (typical SMB) | Purview AI / third-party LLM DLP |
|---|---|
| Business Basic / Standard | Not included — upgrade or add-on required |
| Business Premium | Available as paid add-on (not in base price) |
| E3 | Add-on for advanced AI DLP features |
| E5 | Included — the plan Purview marketing assumes |
Honest read: if you are not on E5 (or have not bought the add-on), Purview's AI story is not something you can switch on tomorrow.
Coverage comparison
| Microsoft Purview | Trinito AI Gateway | |
|---|---|---|
| Microsoft Copilot in M365 | Strong — native integration | Not a Copilot replacement |
| ChatGPT / Claude / Gemini in browser | Requires Edge for Business + Entra sign-in for covered path | Sanitises before egress; chat UI + API today; extension Phase 2 |
| Chrome, Safari, phones, BYOD | Often outside policy scope | Network gateway — devices on office LAN |
| Vendor sees cleartext prompts | Processing in Microsoft cloud | Redaction on your LAN first |
| Audit logs | Microsoft tenant retention | Hash-chained on your appliance |
Deployment comparison
Purview is policy and endpoint/agent oriented — powerful inside a pure Microsoft estate. Trinito is a physical gateway on your LAN: one place to enforce, one log to export, one demo for the board.
Cost comparison (illustrative — 30 users, three years)
| Purview path (E5 uplift) | Trinito Standard (indicative) | |
|---|---|---|
| Year 1 | ~£30–40 × 30 users × 12 ≈ £10,800–14,400 uplift alone | ~£1,499 hardware + ~£948 Trinito Cloud |
| Years 2–3 | Same per-seat recurring | Monthly + optional overages; hardware owned |
| Order of magnitude | Higher recurring OPEX | Roughly one tenth the per-user cost for comparable third-party LLM egress control |
Your numbers will differ — this table is for board-level framing, not a quote. See pricing and request a quote.
When Purview is the right answer
You are already on E5, standardised on Edge for Business, Entra ID everywhere, and your AI risk is mostly Copilot inside M365. Purview is the natural extension of what you already bought.
When Trinito is the right answer
You are on Business Standard or below, use mixed browsers and phones, run Google Workspace or Mac-heavy, need on-prem audit logs, or want frontier LLMs with UK-side inspection without an E5 uplift. See also vs SaaS prompt-firewalls.