Tester

Test your AI agents
before your customers do.

Simulate real conversations, catch failures on every change, and ship with confidence.Works with any agent, including ones you didn’t build with Zowie.

Trusted by operators running Tester at scale

BooksyMonosDecathlonPayoneer

75%

Reduction in support costs at Monos

Monos

How it works

Supervisor evaluates every conversation across three layers, in seconds.

CX and CS leaders at retail, ecommerce, logistics, finance, or telco companies who are:

Scenario editor

“Customer wants to cancel but is in loyalty cooldown period”

Expected

Explain cooldown, offer pause

+ 12 AI-generated variations

Define what to test

Describe scenarios in plain language. Tester also generates edge cases you wouldn’t think to write.

200 simulations
94% pass
Polite phrasing
pass
Polite phrasing
pass
Aggressive tone
pass
Sarcasm tone
fail
Language switch
fail

Simulate hundreds of conversations

Each scenario runs dozens of times across different phrasings, tones, and flows. Statistical confidence, not a lucky pass.

1
2
3

Trigger

Knowledge base update

Running

42 scenarios · 8,400 simulations

Result

All clear. Safe to deploy.

Keep testing on every change

Every update triggers a full test suite. If something breaks, you know before your customers do.

Tester is one part ofZowie’s quality system.

Test before launch. Monitor in production. Debug when something breaks.

  • Tester

    Catches failures before customers do.

  • Supervisor

    Evaluates every live interaction in real time.

  • Traces

    Shows the reasoning behind every AI decision.

Build for your team

Different roles. Same platform.

Whether you’re approving an AI rollout or engineering the infrastructure behind it.

For CX leaders

Every scenario validated to your standard, before a single customer sees it.

Test what your customers actually ask about, not what the vendor demo covers.

  • Define quality criteria in plain language, no code
  • Regressions caught automatically on every change
  • AI discovers edge cases your team wouldn’t write

For technical leaders

CI/CD-grade testing for conversational AI, no custom infrastructure required.

The same deployment discipline your team applies to code, now applied to AI agents.

  • Regression gates on every configuration change
  • Multi-run validation with statistical confidence
  • Test Zowie, in-house, and third-party agents from one platform
MuchBetter
We didn't have to rebuild our systems or retrain the team. We plugged it in - and just like that, our agents weren't drowning in support tickets anymore. Customers got faster answers, resolution times dropped, and satisfaction improved right away.

Carlos Estrada

Director of Operations, MuchBetter

Carlos Estrada, MuchBetter

Test your AI agents before your customers do.