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What we do
- Scenario and failure-condition design
- Live calls with accents, noise, hesitation, and self-correction
- Task completion, repeats, abandonment, and entity-error logging
- Regression tests after model or prompt changes
CORE / Voice AI vendors
Real second-language speakers test conversation flows on real devices, networks, and environments.
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Share the target user, workflow, and cost of failure. We will design the smallest pilot that can answer the question.