The A/B testing tool that builds the tests too
pagent writes the hypotheses, builds the variants as real code in your design system, and runs each one against the original with statistical rigor. Every result feeds the next hypothesis.
- First test live in week 2
- Real code, no flicker
- No dev ticket
See it on your own site
Give us the page. pagent comes back with hypotheses, ranked by impact, confidence and effort.
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It wrapped Friday — the new hero won at +14% and it’s already live.
Want to line up the next test?
Read customer interviews and scanned your checkout analytics — I found 5 hypotheses. Here’s the top pick:
Add trust signals near the pay button
OpenYour payment page shows no trust signals where visitors decide to buy.
- Cohort
- All users
- Expected lift
- High
- Effort
- Low
Want me to build the variations?
From idea to a live test in three days. Pixum, NEOH, Brandnamic and Zahnklinik Wien Döbling test with pagent.
Three things stop a testing tool from producing tests
Every platform in this comparison gives your team an editor and a dashboard. None of them gives you the capacity to fill the backlog it creates.
A test waits on the next sprint
Ticket, dev time, feature flag, deploy, quality check. The backlog grows faster than your team can launch, and the ideas at the bottom are never tested at all.
The AI in the box rewrites headlines
It suggests a new headline and calls that AI. The change that would actually move the number still needs a developer and a sprint.
Half the platform sits in the enterprise tier
Server-side testing, multivariate, mutually exclusive groups, the approval workflow. Each one a separate quote, on top of a price that already scales with your traffic.
From idea to evidence without the handoff chain
Creation, preview, review, quality checks and rollout sit with one agent. Engineering only handles the custom code.
- 09:41analyzing /checkout · 3 friction points found
- 09:44hypothesis: show delivery promise above the fold
- 09:52variant built · design system ✓ · desktop + mobile ✓
- 09:53test live · traffic split 50/50
- nowcollecting evidence …
- 01
Decides what to test
pagent reads the page and the evidence available on it, then writes page-specific hypotheses with impact, confidence and effort made explicit.
- 02
Builds the variant
pagent builds it through your connected design system, in your components, tokens and spacing, previewed against the live page.
- 03
Checks it and ships it
pagent runs the quality checks on desktop and mobile, handles hydration and SPA routing, and ships without flicker.
- 04
Reads the result
pagent runs the variant against a control, watches the primary metric under the statistical safeguards, and reports the uplift in % with its range.
Every page arrives with its hypotheses already ranked
pagent keeps a queue per page, ordered by impact, confidence and effort, and refills it from what the last test learned. Your team picks what goes in, and can add its own.
What pagent does, what you decide
Nothing goes live without your approval, and the reviewer does not need an account.
The whole platform in one license
Every platform feature is included in one license. Your website’s monthly unique users determine the license price, not the features your team needs.
- Multi-arm and multivariate tests
- As many events and goals as you like
- Statistical safeguards and adaptive traffic allocation
- Server-side conversion API
- Anti-flicker control, SPA and hydration handling
- Approval workflows, and the reviewer needs no account
All platform features included. Monthly task allowance and optional top-ups are agreed in your quote. How pricing works.
What the teams running it say
With pagent, we established an AI-supported system that supplements our experimentation with fast, self-learning variants.
Our clients operate in a highly competitive market environment. Our main mission is to help them gain a competitive advantage.
Eight weeks from kickoff to pilot results
A hands-on proof of value on one of your high value pages. Your team runs it with the agent from the first week.
- Week 1
Kickoff and onboarding. One script tag, your brand rules and design system connected.
- Week 2
First test live, with more queued behind it.
- Week 5
Segment level tests join the queue, on the same measurement.
- Week 8
Pilot results on one of your high value pages, read against a control.
Frequently asked questions
Are the variants real code?
Yes. pagent ships the variant as real code on your live site, built through your design system, checked on desktop and mobile, and reversible in one click. No visual overlay, no flicker.
How is this different from the AI in VWO, AB Tasty or Optimizely?
Their AI suggests. It writes a headline for a human to paste and launch. pagent runs the loop: it writes the hypothesis, builds the checked variant in your design system, runs it against a control and reads the result.
Which statistical method do you use?
The one your team already works with. pagent runs Bayesian, frequentist and sequential tests, with the safeguards and adaptive traffic allocation included in your platform license.
How fast is the first test live?
Week 2 of the pilot, with more queued behind it. Week 1 is kickoff and onboarding: one script tag, your brand rules and your design system connected.
Do we have to move off our current testing tool?
No. Your testing stack stays. Most teams keep their platform for strategic, planned experiments and add pagent for velocity: long-tail pages, campaign landing pages and continuous personalization. If you want one system for the whole loop, pagent also stands on its own.
See it on your own site
Give us one page. pagent comes back with hypotheses, ranked by impact, confidence and effort.