Graded A- on resilience. In Vannus's assessment it builds its own AI model — builds its own AI or is not captured by any single model provider.
Choosing the right model, whether `gpt-5.6` or a smaller option like `gpt-5.6-terra`, requires balancing accuracy, latency, and cost.
Vannus grades OpenAI 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 →