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    CHSwitzerlandLumo

    Proton · Switzerland · Adequacy country

    Privacy-maximalist chat for individuals and small teams.

    EU company
    EU data residency
    Compliance: Medium
    Open Lumo

    Classification

    Jurisdiction tier
    Adequacy country — Non-EU country with an EU adequacy decision — data flows freely; note the caveat.
    Note
    Swiss EU adequacy (since 2000) + strong national law (revFADP); not subject to the US CLOUD Act.
    Caveat
    Switzerland is an adequacy country, not an EU/EEA member.
    Compliance level
    Medium — Derived from the verified classification data on this site: Very high = EU/EEA jurisdiction + documented EU data residency + self-hostable option. High = EU/EEA + EU data residency. Medium = adequacy country + residency, or EU/EEA without documented residency. Each underlying claim carries its own source.
    Tags
    privacy
    What the badges mean

    EU company — Vendor headquartered in Europe (state country + tier).

    EU data residency — EU data-residency / processing option available.

    Why these rules
    Last verified
    2026-09-04

    Sources

    AI Capability Snapshot

    AI Capability Index — normalised so the strongest model scores 100 (anchor: Claude Fable 5.1 (max effort)). How this is measured

    Capability indexNot yet scored
    Coding subscoreNot yet scored

    Not yet scored: Proton publishes no independent benchmark for Lumo, and the figures circulating on third-party blogs are not confirmed on the Artificial Analysis leaderboard. It will be scored as soon as a verifiable result exists.

    Retrieved
    2026-09-04

    Reference models (non-EU)

    For scale only — these models are not European and are not listed in the directory.

    • Claude Fable 5.1 · Anthropic (US)100 / 100
    • Claude Opus 5 · Anthropic (US)95 / 100
    • GPT-5.6 Sol · OpenAI (US)92 / 100
    • Gemini 3.7 Flash · Google (US)85 / 100

    Independent, informational guide — not legal, security or compliance advice. Classifications describe company location, GDPR transfer status, data-residency options and licensing as of the date shown, from public sources. Verify data-processing terms with the provider before use, especially for personal or sensitive data. No affiliation with any vendor.

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