Graded B- on resilience. In Vannus's assessment it has not disclosed which model it runs — resilient — owns model IP or routes across providers.
Speech-to-text, text-to-speech and voice-agent APIs supporting 56+ languages, from Cantab Research Limited trading as Speechmatics, incorporated in England and Wales (company number 05697423), registered office One Cambridge Square, Milton Avenue, Cambridge CB4 0AE, United Kingdom. Vendor states "Run Speechmatics on device, on prem and in the cloud depending on your privacy needs" and "We don't lo
Not disclosed. Speechmatics 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 Speechmatics 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 →