Powered by NVIDIA NemotronAI usability testing, powered by NVIDIA Nemotron
Paste a link and say what to try. Five different people use your site in a real browser while you watch, then you get where they got stuck, why, and the exact fix.
Built with NVIDIA Nemotron 3 Ultra, Nebius Token Factory, Nemotron 3 Super, Tavily live research, Nemotron 3.5 Super VL, Real Chromium browsers, Nemotron 3.5 Lightning, Accessibility checks.
Watch a run
This is our Fernhill sample. Each character is a persona working through the same pricing page. When something confuses them you see it on their face, hear it in their words, and a pin lands on the exact spot.
Their face
Calm, confused, worried or fed up: the confusion score of every step.
Their words
What the persona was thinking, quoted in the report.
The pin
Taken from the page's own layout, so it lands on the real element.
The verdict
Who finished, who gave up, and why.
How it works
No recruiting, no scheduling, no screen-share. Every step below runs on its own when you press Run.
Tavily researches your product's category and what its users complain about. Nemotron 3 Super turns that into five personas, each with a device, a reading style and a breaking point.
Five real browsers open at once. On every screen Nemotron 3.5 Super VL looks at what's there and Nemotron 3 Super decides what this person would click, type, or give up on. You watch them think.
Nemotron 3 Ultra reads every step and writes the report: who got stuck, where, in their own words, and the exact change to ship. Copy, CSS or flow.
Meet the five
Every run recruits a fresh cast for your product, but they always cover these five kinds of people. A site that works for all of them works for almost everyone.
First-timer
Checks: Is it obvious where to start?
“Accept cookies to clear the banner and proceed.”
Power user in a hurry
Checks: How many clicks until value?
“Annoying that I have to pick a plan before I can even start.”
Mobile only
Checks: Does it work under a thumb?
“That empty button might be a menu toggle.”
Low digital confidence
Checks: Does it feel safe and clear?
“I'm not comfortable entering my card details on a trial sign-up page.”
Non-native English reader
Checks: Is the wording plain enough?
“I notice a message saying my card has expired. That is confusing.”
What you get
Every issue is pinned on the screen where it happened, backed by what a persona actually thought, and comes with the change to make. This one is straight from our Signup sample report.
the pin comes from the page itself, not a guess
The signup form demands card details before the account exists, even though the page promises no charge until the trial ends. Margaret and Sunita both had to type test card numbers to get through, which adds friction and distrust.
“I'm not comfortable entering my card details on a trial sign-up page.”
Flow fix · Drop payment from signup; ask for it when the trial ends or the user upgrades.
+Signup asks for name, email, password and workspace. Payment waits for the trial banner or the upgrade flow.
Nobody could confirm they had picked blue. Every swatch is an unlabeled button and nothing changes when you choose one, so people clicked again and again.
“I'm unsure which color is blue and don't want to guess and make a mistake.” Margaret, 68
CSS fix · Name each swatch and show the chosen one clearly.
.swatch::after { content: attr(data-color); }
.swatch[aria-pressed="true"] { outline: 3px solid #0066cc; }After choosing Saturday 24, the grid still said 'Available times · Tuesday 20 October'. Scrolling didn't help, so Kofi gave up.
“Maybe more dates appear if I scroll down.” Kofi, mobile
Flow fix · Show the chosen day's times right away and update the label.
+Picking a date loads that date's slots and the label names the chosen day.
Under the hood
Four Nemotron models, each on the job it's best at, plus Tavily for live research. One run is a real multi-step agent workflow, not a single prompt.
Nemotron 3.5 Lightning
Reads your site and names its category
PreparingTavily
api.tavily.com
Researches who uses products like yours and what they hate
RecruitingNemotron 3 Super
Writes the five personas, then decides every click and keystroke with tool calls
Recruiting · TestingNemotron 3.5 Super VL
Looks at every screenshot as that persona, checks every “done”, reviews each screen
Testing · ReviewingNemotron 3 Ultra
Reads the whole run and writes the issues, quotes and fixes
WritingReal runs
We built three websites with known usability flaws and let FiveUsers loose on them. Open any report: every step, every quote and every fix is from the actual run.
One link, one task, a couple of minutes. No signup, no SDK, nothing to install on your site.
