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Coval vs Hamming AI
Coval and Hamming AI both test AI voice agents by placing simulated calls before launch and scoring live calls after it. Coval, founded by a former Waymo simulation lead, publishes its plan prices and overage rates and covers chat agents as well as voice. Hamming AI, a Y Combinator company, quotes every deployment and leans into red teaming and compliance for banks, healthcare, and support teams.
| What buyers compare | Coval | Hamming AI |
|---|---|---|
| Price per month | Starter $100 and Growth $500 a month. Enterprise from $4,500 a month | Production and Enterprise plans, both quoted |
| Free plan or trial | 7-day free trial on Starter | Not published |
| How usage is counted | Simulation and upload minutes by plan, with published overage rates | Quoted on the agents you run, the call traffic they carry, and the security controls you need |
| Integrations and features | Simulated voice and chat conversations, custom metrics, live call monitoring, human review queues, and an API, CLI, and MCP server | Test scenarios with accents, interruptions, and IVR trees, red teaming, live call scoring, and failed calls turned into regression tests |
| Security and deployment | Enterprise adds SAML SSO, SCIM, data residency, and a named support engineer | Enterprise adds a SOC 2 Type II report, a HIPAA BAA, SSO, audit export to a SIEM, single-tenant deployment, and data residency |
| Best for | Teams shipping phone or web voice agents in support, healthcare, insurance, or financial services that want regression tests on every release, and agencies comparing voice platforms before picking one | Teams building AI voice agents for healthcare, banking, and customer service that need automated testing before launch and monitoring after |
List prices in US dollars per month before tax, as published on each vendor's site on November 6, 2026, billed monthly unless the cell says otherwise. "Quote" means the vendor sets the price through its sales team.
Which one fits
Coval is the stronger pick for teams that want to price voice and chat agent testing from the website and start on a free trial, while Hamming AI is the stronger pick for regulated teams that want red teaming, single-tenant deployment, and a forward-deployed engineer.
Choose Coval if
- You want to see prices before a sales call. Starter is $100 a month with a 7-day free trial.
- You test chat agents as well as voice agents.
- You want to start test runs from CI or a coding agent through an API, CLI, or MCP server.
Choose Hamming AI if
- Your agents take calls in banking, healthcare, or other regulated work.
- You need red teaming for prompt injection, jailbreaks, and PII leakage before every release.
- Your security review asks for single-tenant deployment, audit export, or customer-managed keys.
What buyers say
“After trying many, this is by far the strongest evaluation platform for voice agents.”
Hamming AI customer · testimonial published by Hamming
“Voice is going to be the number one interface for how humans interact with AI, and that shift creates an entirely new infrastructure layer for enterprises.”
Scott Beechuk · Partner at Norwest, which led Coval's Series A, quoted by Coval ·
“Trust is critical to scaling these experiences.”
Andy O'Dower · Field CTO at Twilio, on voice agent evaluation tools, quoted by The Next Web ·
“We could price Coval from its website and run a trial the same week. Hamming needed a call, but its red-teaming suite covered more of the cases our compliance team asked about.”
Representative buyer view
Verdict
Coval (7.6 out of 10, Recommend) is the choice for teams that want voice and chat agent testing with published prices from $100 a month, a free trial, and developer tools for running tests from CI. Hamming AI (7.5 out of 10, Recommend) is the choice for banks, healthcare companies, and support teams that want red teaming, live call scoring, and enterprise security controls on a quoted plan.
Methodology
We read the Coval and Hamming AI pricing pages on November 6, 2026 and recorded every published price, limit, and plan feature. A cell reads "Not published" when the vendor does not state that detail on its site.
Scores and best-fit notes come from the AIR reviews of each product. Buyer quotes come from public review sites and vendor-published customer quotes. Quotes marked Representative buyer view are written by AIR to reflect buyer feedback and carry no source link.
Sources
- AIR review: Coval
- AIR review: Hamming AI
- Coval pricing
- Hamming AI pricing
- Hamming AI customer testimonial
- Scott Beechuk quote in Coval's Series A post
- The Next Web on Coval's Series A
Comparison table
- Sources by row, numbered as in the list above: Price per month (Sources 3, 4); Free plan or trial (Sources 3, 4); How usage is counted (Sources 3, 4); Integrations and features (Sources 3, 4); Security and deployment (Sources 3, 4); Best for (Sources 1, 2).
Quote sources
- “After trying many, this is by far the strongest…” (Hamming AI customer · testimonial published by Hamming): source
- “Voice is going to be the number one interface…” (Scott Beechuk · Partner at Norwest, which led Coval's Series A, quoted by Coval · June 23, 2026): source
- “Trust is critical to scaling these experiences.…” (Andy O'Dower · Field CTO at Twilio, on voice agent evaluation tools, quoted by The Next Web · June 25, 2026): source