Graded D on resilience. In Vannus's assessment it routes across several model providers — not captured by one — single-point-of-failure risk.
If you connected your API key, your API credits are used
Vannus grades Lemlist 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 →