Coval

What is Coval?

Coval is a platform for testing, evaluating and improving voice AI agents before and after deployment. It raised a $28M Series A. Customers include Chime, Perplexity, ServiceNow, StubHub, Zoom, Toast and Upstart.

Key capabilities of Coval

• Simulate: run thousands of realistic conversation scenarios before launch
• Observe: monitor production calls with real-time evaluation metrics
• Human Review: route critical calls to QA reviewers
• Behavior evals: identity verification, escalation, information collection and hallucination detection
• Edge case testing: policy traps, accents and frustrated callers
• Regulated industry support: compliance features for healthcare and finance

How Coval works

Teams define scenarios and simulated callers, run them against the voice agent, then score results on behaviors such as staying on topic. In production, Coval evaluates live calls and sends flagged ones to human reviewers, whose feedback strengthens automated evaluations.

Who uses Coval?

Teams building voice agents for support, financial services, healthcare, hospitality, insurance, retail and travel use Coval. Customers report 217% better agent accuracy within 7 days and run 3.1M evaluation metrics weekly.

Coval pricing

Coval does not publish pricing on its homepage. Contact the vendor for a quote.

Coval alternatives

Coval is compared with HoneyHive, Parea AI and Autoblocks. HoneyHive and Parea AI cover LLM evaluation and observability more broadly, while Coval specializes in voice.