Proton · Product
The privacy guide names models and Proton-controlled servers. The Lumo Business article states European hosting; confirm the applicable product and plan. https://proton.me/support/lumo-privacy https://proton.me/business/blog/lumo-business.
Derived from product page and FAQ.
No third-party business-system connectors (e.g. SharePoint, Google Drive) named. Blog: 'There's nothing you need to integrate.'
No explicit provider-stated accuracy or functional limitations found on product, pricing, privacy support page, blog or FAQ.
Quote: 'There's nothing you need to integrate.'
Blog: 'affordable for teams of any size with no minimums'.
Taxes may apply. Confirm the monthly price and the EUR/CHF currency selection in your quote.
Lumo privacy policy (https://proton.me/lumo/privacy-policy, modified Sept 17 2026) does not state Proton's own server locations; third-party processors (Zendesk, Stripe, Chargebee, PayPal, Atlassian) are in US/EU/UK/Singapore for support/payment data.
The provider’s own sources say different things here. Quote: 'never keeps your data or uses it to train LLMs, except with your express permission' (opt-in anonymised Apertus feedback shared with ETH Zurich/EPFL). CONTRADICTION in wording: https://proton.me/business/lumo says 'Lumo never trains AI models on your chats' without the opt-in exception.
Lumo page references 'Proton's ISO 27001 and SOC 2 certifications'. Not third-party verified. GDPR/HIPAA are laws, not certifications.
Model list from https://proton.me/support/lumo-privacy. No third-party LLM API providers named.
Deletion via account from https://proton.me/lumo/privacy-policy. No retention periods for business admin data stated; Workspace Premium lists 'Data retention policies' feature.
Chat-history export for business admins not described.
No self-hosted or on-prem option mentioned.
Signals only.
Product page shows no trial; pricing page does.
Same list on https://proton.me/business/lumo FAQ.
Editable hypothetical example · not provider pricing or measured performance. Use this monthly worksheet to test your own quote and quality assumptions.
/ accepted outcome
accepted outcomes / month
5,000 tasks × 80% = 4,000 accepted outcomes per month. Higher entered costs raise unit cost; more accepted outcomes spread the same cost over more results.
Formula: entered monthly costs ÷ (monthly tasks × acceptance % ÷ 100). The numerator includes only the costs you enter. Add applicable licence, usage, integration, human review and rework costs yourself; this is not automatically a fully loaded estimate or a vendor billing model. Capacity released is not realized financial value.
Inputs stay in this browser tab’s session, including reload and language changes. They are not added to the page URL. Continuing prepares an unsent enquiry draft.
Each mark shows what kind of source backs a fact. Open the fact to read the source, the date it was checked and any conditions.
Figures marked 'Scenario' are calculated from stated assumptions. Results measured in practice are shown separately.
Each source supports its recorded scope. Documentation depth and independent verification are separate.
AI DECISION BRIEF
You get the facts that matter for your decision, each with its source, the questions to ask each vendor and a cost estimate based on your own numbers. First you agree your three most important criteria with Sten Franke.
We deliver your brief by email within a maximum of five working days after payment is confirmed and we have agreed the question and minimum information needed to begin. ETHORITY confirms the start date and delivery date and delivers earlier when the reviewed brief is ready. Missing optional information is recorded and assessed; it does not require you to research the solution yourself. Review before delivery and email support are included.
The buttons open an email draft you can edit before sending. You agree the work and timing directly with Sten Franke.
ETHORITY®