Test the whole product. Including the AI parts.
Every team uses AI to build faster. Almost none of them have a way to test what they shipped. Swarmcheck checks your UI flows with a persona swarm and validates your AI features with semantic assertions — hallucinations, prompt injection, response-quality regressions — on every PR.
"Everyone else uses AI to run your tests. We test the AI inside your product. That's a different problem."
Traditional QA can’t check if your AI works. Swarmcheck is built for product teams—not just LLM engineers—so you catch AI failures before users do.
Six ways AI features fail. Five of them your QA tool can't see.
Traditional tests check exact (deterministic) outputs. AI features return valid but varied results each run—only Swarmcheck catches all six failure modes.
| Failure mode | What it looks like | Traditional QA? | Swarmcheck? |
|---|---|---|---|
| Hallucination | Your AI support chat invents a refund policy that doesn't exist. | ❌ No | ✅ Yes |
| Prompt injection | A user manipulates your assistant into leaking the system prompt — affects 73% of production AI deployments. | ❌ No | ✅ Yes |
| Non-determinism regression | After a model update, response quality drops 15% but no test fails. | ❌ No | ✅ Yes |
| Tool call failure | An AI agent calls the wrong API or passes bad parameters. | ❌ No | ✅ Yes |
| Boundary violation | The AI happily answers questions outside its intended scope. | ❌ No | ✅ Yes |
| UI regression on AI surfaces | The chatbot loads but streams blank text on Safari. | ✅ Yes | ✅ Yes |
The familiar entry point. The wedge nobody else has.
The whole web product, exercised by a persona swarm.
Flows, forms, payments, navigation — the deterministic surface. Parallel persona agents drive the live app the way different users would. Familiar territory, sharper coverage. This is the door teams walk in through.
The AI features inside the product, tested the way AI needs to be tested.
Semantic assertions, hallucination checks, prompt injection probes, LLM-as-judge quality regressions, tool-call validation. The wedge nobody else owns — and the reason teams stay.
The assertions traditional QA can't write.
Semantic assertions, not string matching
Score outputs against a plain-English rubric with an LLM judge. Pass when the meaning is right, even if the wording shifts. Judges agree with humans up to 85% — higher than humans agree with each other.
- Intent and correctness against your rubric, not exact phrasing.
- Tolerance for wording/style variation when meaning stays correct.
- Confidence trend for pass/fail decisions over repeated runs.
Hallucination detection
Probe your AI feature with questions whose answers are known — pulled from your knowledge base or from facts you define. Get a hallucination rate per run, tracked across releases.
- Known-answer prompts sourced from your approved facts.
- Per-run hallucination rate with release-over-release deltas.
- Exact failing prompts and model responses for triage.
Prompt injection probing
Every PR fires an adversarial suite at your AI surface — the OWASP #1 LLM vulnerability. Pass means the guardrails held. Fail blocks the merge.
- System prompt leakage attempts and role escalation probes.
- Bypass attempts against policy, tone, and safety guardrails.
- Merge-blocking verdict when exploit patterns succeed.
Response quality regression (LLM-as-judge in CI)
Update a system prompt, swap a model, edit your RAG corpus — Swarmcheck re-scores the benchmark suite and flags every regression against the previous baseline.
- Quality score diff versus previous baseline on each PR.
- Regression alerts by scenario, persona, and environment.
- Historical score trend to catch slow quality drift.
Tool call validation for AI agents
If your product embeds an agent that calls tools, Swarmcheck validates behaviour in a sandbox: right tool, valid params, terminates cleanly, no leaked context.
- Correct tool selection for the user intent in context.
- Argument schema validity and safe parameter boundaries.
- Clean agent termination with no sensitive context leakage.
Everything you need to ship without breaking things.
Real-app testing
Agents drive a live browser the way a user would — clicking, typing, waiting, scrolling — so you catch real bugs, not just unit failures.
Plain-English tests
Describe what you want checked in a sentence. No selectors, no waits, no flaky scripts to babysit.
Auth, OTPs, OAuth
Agents log in, complete OAuth handshakes, and receive one-time codes through dedicated inboxes. Secrets stay encrypted at rest.
Wired into your PRs
Connect the GitHub App and every pull request gets its own check, complete with a verdict and links to the evidence.
Web and mobile
Same product, same tests, three platforms. Web, iOS, and Android run from a single project.
Production monitoring
Schedule recurring runs against prod and get pinged the moment a critical flow breaks for real users.
From a fresh project to AI checks on every PR in four steps.
Point us at your app
Drop in a URL or upload a build. Tell us which surfaces use AI — chat, search, agent, generative blocks.
Describe what 'good' looks like
Plain-English rubrics for AI outputs. Plain-English flows for everything else. No selectors, no eval scaffolding to maintain.
Wire it into every PR
Swarm Tests (End to End Tests) and AI Assertions run on each pull request, on every preview deploy, and on a schedule against production.
Read a verdict you can trust
Pass / fail, hallucination rate, quality delta, recordings, and the exact prompt or step that broke. Posted to your PR and Slack.
Drops in next to whatever you already ship with.
PR checks for the AI parts too
Hallucination rate, quality delta, prompt-injection results — posted on every pull request, with links to the failing prompts and recordings.
Lives where your team already does
Slack, Linear, Jira, GitHub Issues, PagerDuty. Send AI regressions to the inbox the on-call actually reads.
Run it in your own VPC
Self-hosted runners on AWS, GCP, or Azure so your prompts and AI outputs never leave your perimeter. SSO and audit logs included on enterprise.
Integrates with your stack.
Connect Swarmcheck to the tools your team already uses to plan, build, and ship.
Built for enterprise security.
Industry-standard certifications. Your data stays protected.
Independently audited security, availability, and confidentiality controls, verified annually.
International standard for information security management systems, independently certified annually.
Full EU data protection compliance with DPAs available. No data retained after job completion.
If your product has AI in it, this is the QA tool you've been missing.
As of 2026, 60% of YC batches are AI companies. Every one of them ships AI into a web product. None of them have a purpose-built tool for testing it. That's the beachhead.
SaaS teams shipping AI features—chatbots, AI search, embedded agents—or needing better UI and AI test coverage.
"We don't know how to test the AI chat we just shipped, and our traditional flows are hard to keep covered."
Vibe-coded and AI-generated codebases moving at speed.
"We ship fast but have zero test coverage."
Any team on Vercel-style preview deploys.
Standard regression QA without the scripting overhead.
Wherever bugs slip through today.
Block the broken PRs, ship the rest
Run a smoke suite on every preview deploy and turn red the second a critical flow breaks.
Full regression in minutes, not days
Spin up dozens of agents in parallel and clear an entire release suite before the standup ends.
Be the first to know, not the last
Recurring runs against prod ping you the moment a real-world flow breaks — long before users tweet.
Take the boring stuff off the team
Hand the repetitive checklists to agents so your humans can focus on the cases worth a brain.
Quotes we'd love to put real names on.
"We shipped an AI support agent and immediately realised we had no way to test it. Swarmcheck was the first tool that even understood the question."
"Quality regressions on prompt edits used to ship to prod and we'd find out from users. Now they fail the PR. Different game."
"We deleted our Playwright repo on a Friday and shipped twice as fast the next week. Swarmcheck just works."
"Recordings settled every 'works on my machine' argument we'd had for a year. Now PRs either pass or they don't."
Need answers?
Ship AI features with proof they work — not hope.
See Swarmcheck running AI Assertions against your own product in a 20-minute call. No slideware.