Syed Fazle RahmanUpdated Jun 10, 2026QA for chat agents in production.
Every knowledge base update, prompt change, or model swap risks breaking conversation flows your customers depend on. Bug0's AI agents and forward-deployed engineers catch what breaks before your customers experience it.
Chat agents are handling millions of customer conversations daily. Testing them is still manual, slow, and incomplete. We fix that.
Trusted by 200+ engineering teams testing chat, voice, and conversational AI.
Featured in Google AI Studio's developer showcase
You ship the update.
We test every conversation it touches.
Prompt changes · Knowledge base updates · Model swaps · New integrations
The problem
Chat agents break silently.
Every time you ship.
One change. Thirty broken flows. Your customers experience it before you do.
What slips through every time
Prompt changes break working flows.
Knowledge base edits cause wrong answers.
Context lost in multi-turn conversations.
Hallucinations after model swaps.
Tool calls fail silently.
Compliance checks get skipped.
Agent loops without resolving the issue.
Prompt injection goes undetected.
BEFORE KNOWLEDGE BASE UPDATE
Can I switch my subscription to annual billing?
Yes! Go to Settings → Billing → Change plan. Annual saves 20%. Want me to apply it?
✓ correct, resolves in 2 turns
AFTER KNOWLEDGE BASE UPDATE · SAME QUESTION
I don'm sorry, I don't have any information about subscriptions. Is there anything else I can help with?
✗ regression detected · billing intent no longer recognized
What engineering leaders say.
“Bug0 is the AI QA platform behind Prospyr, the practice management software for aesthetics clinics. It tests our web app continuously and points us to exactly where the app broke when something fails. We catch issues early instead of in production, which keeps a HIPAA-compliant product stable.”
“Bug0 is the closest thing to plug-and-play QA testing at scale. It's helped us catch multiple bugs before they made it to prod.”
“We build healthcare compliance software, so accuracy and reliability are non-negotiable. Bug0 provided us with an AI-based QA layer without adding headcount or another tool for my team to learn and manage. The tests run against all of our QA instances on a regular basis, providing us with a level of coverage and confidence that previously required many resources. We can focus our team on new development and real issues, and that's the part I care most about.”
“We plugged Bug0 into our CI and had our critical flows covered within a week. Like having a proactive QA engineer reviewing every deploy.”
“Bug0 is the AI QA platform behind Ferra, AI estimating software for steel construction. AI-based testing and execution with a forward deployed engineer who verifies every result, so we catch real bugs before production instead of chasing false positives. We see exactly where things broke, and we ship with confidence.”
“Bug0 gives us the speed of AI-native automation with the accuracy of human QA. We stopped worrying about flaky tests entirely.”
“We'd been putting off test coverage for months. Bug0 had our critical flows covered in under a week. No scripts, no maintenance burden.”
“We used to skip regression tests before releases because they took too long to maintain. Bug0 runs them on every PR now. We haven't shipped a regression in three months.”
How it works
From your first commit to your last deploy.
- ✓Refund request flow14 turns
- ✓Subscription change9 turns
- ✓Order status lookup6 turns
- ✗Escalation to human agentfailed at turn 6
- ✓Compliance disclosure11 turns
Failure verified by your FDE · transcript and audio attached
- 01
We learn your agent.
Share your agent's config, system prompt, knowledge base, and critical conversation flows. Our FDEs map every path your customers take.
- 02
Your FDE generates the regression suite.
Hundreds of test scenarios built on Bug0's AI engine and tailored to your flows. Multi-turn threads, varied user intents, tool call variations, adversarial inputs, edge cases you'd never think to test manually.
- 03
Tests run on every change.
Every prompt update, knowledge base edit, model swap, or integration change triggers your full regression suite automatically. No manual effort.
- 04
FDEs triage and report.
Our forward-deployed engineers review failures, separate real bugs from noise, and deliver reports with full conversation transcripts, logs, and the exact point of failure. You fix. You ship.
AI agents and human engineers work every run. No failure reaches you without an engineer confirming it's real.
Every report includes the full conversation transcript, tool call pass/fail, context retention across turns, and the exact message where things went wrong.
Platforms
Built for teams on
any chat platform.
If your agent handles real customer conversations, we can test it.
Intercom Fin
Zendesk AI
HubSpot AI
Drift / Salesloft
Tidio
Freshchat
Custom / in-house
Part of Bug0 Managed
Same service. Same flat price.
Chat agent testing runs on the same managed QA service: a dedicated forward-deployed engineer, from $2,500/mo flat. Discounted 60-day pilot, month-to-month.
One flat subscription.
Chat flows count toward your plan like any other user flow. No per-test, per-conversation, or per-hour billing.
Onboarding handled end-to-end.
We handle setup end-to-end. From flow mapping to your first full regression run in days, not weeks.
Full coverage from day one.
Every conversation flow, every edge case, every deploy. Backed by AI agents and your forward-deployed engineer.