Evaluation isn’t a gate.
It’s an engine.

Most teams are building blind—shipping agents with a demo and a prayer.

Coval is evaluation infrastructure for voice AI. Continuous improvement, not one-time testing.

Simulate. Measure. Resolve. Repeat.

Thousands of realistic conversations with edge cases, compliance traps, angry customers. Run your metrics. See what breaks. Fix it. Run it again. Every cycle, the agent gets sharper.

We help with every step. The sim design. The right metrics. Where to look when something fails. We pattern-match across hundreds of voice deployments in healthcare, finance, and enterprise CX.

One customer shipped a prompt update on a Tuesday. By Thursday, their booking completion rate had dropped 12%. They had no way to detect it. That's the evaluation gap.

Single pane of glass from sim to prod.

You've tested enough and met KPI thresholds. You deploy. And prod calls are … different. They always are. Voice is non-deterministic and live customers are always surprising us.

Coval gives you a single view for all your metrics from sim to production. Production-grade monitoring with the same lens you used in testing. So when something drifts, you see it immediately, and know exactly where to go to resolve.

Every failure makes the system smarter.

Some calls - in both sim and prod - need a human eye. Coval routes them to review queues. Your team annotates. Those annotations become test cases. Those test cases feed back into simulations.

The loop closes and your data keeps compounding.

Three loops. One platform. Compounding excellence.

"It's improving. Night and day compared to when we started the pilot." — Dhivya Rajprasad, Zoom


"I don't know how I did things before this. That was the 10x improvement." — Mike Jiao, PM/Product Lead, StubHub

"You need an independent vendor to do evaluations. You can't have the people building the product also pretend that they can observe the product." — Anoop Dawar, Partnerships, Deepgram

Hippocratic AI

Scale your agents with security at the core.

Coval is audited and certified by industry-leading third party standards.

AICPA

SOC2

HIPAA

Compliant

GDPR

See how this works for your team.

15 minutes to connect. We'll discuss your current initiatives and how we can support improving your agents’ quality, consistency, and compliance.