Graded D on resilience. In Vannus's assessment it has not disclosed which model it runs — single-point-of-failure risk.
Voice generation and emotionally expressive speech APIs (Octave TTS, EVI conversational voice). The privacy policy gives an address of 51 Madison Ave, Floor 31, New York, NY 10010 and states data may be stored and processed in any country where it has facilities or service providers, including the United States. Its developer documentation states that by default anonymised EVI interaction data is
Not disclosed. Hume AI does not publish which model it runs, so this criterion is excluded and the grade rests on what we could verify. We say so rather than guess.
This is a separate question from the grade above. The grade measures resilience — whether the tool endures and whether you could leave it. This measures who can compel your data. A tool can score modestly on one and strongly on the other, and many do.
The vendor's published or catalog-recorded posture — the concrete facts this grade is built from. A full audit verifies each against the vendor's current documentation.
Vannus grades Hume AI against nine dimensions of trust — data sovereignty, training privacy, compliance posture, operational resilience, exit portability, and more. The heaviest criterion asks whether the tool builds its own AI or resells someone else's model; where the vendor discloses it, the grade cites the vendor's own documentation. No paid placements — scoring is walled off from affiliate revenue. See the methodology →