You can try Synthetic Users for free at build.reforge.com or schedule a demo to learn more.
You can build a working prototype in an hour. Getting feedback on it still takes weeks.
Recruiting participants, scheduling sessions, running them one at a time, synthesizing notes. By the time you have real insights, the sprint is over and the feature shipped without them. So most teams are tempted to skip validation entirely. They ship based on instinct, tell themselves they'll validate later, and move on. Later never comes.
AI has made building 10x faster, but validation hasn't kept pace. The gap between what teams ship and what they actually know about their users is growing every quarter. We call this the discovery deficit.
Today we're launching Synthetic Users to close it.
How to collect fast feedback with Synthetic Users
Synthetic Users runs automated feedback sessions on your product using AI-powered personas. You point it at any URL or prototype, define what you want tested, and select the types of users you want feedback from. Within minutes, you get a structured research report with severity-ranked findings, session replays, and an executive summary.
These aren't bots clicking through a script looking for broken buttons. Each persona brings a distinct perspective with its own goals, biases, and expectations. A First Timer notices confusing onboarding language your team stopped seeing months ago. A Power User finds friction in your core workflows. A Skeptical Buyer questions whether your value prop is clear enough to justify signing up.
The feedback sounds like what you'd hear from a thoughtful customer or a sharp PM reviewing your product.
"The hero section leads with features but doesn't explain why I should care as a potential customer."
"This pricing page feels like it's designed for enterprise buyers, but the plans suggest SMB. That's confusing."
"The signup flow asks for too much information too early. I'd drop off after the second form field."
This is strategic product feedback, not QA output.
Five personas, five perspectives
Most products are evaluated, purchased and used by a handful of different people, each with their own scope of work and point of view. You can create personas to match your own users and buyers to get the best possible feedback. Here are a few you might start with:
Design Nitpicker identifies UI patterns, layout issues, and visual design problems
First Timer spots confusing language, unclear navigation, and onboarding gaps
Power User finds friction in core workflows and areas where efficiency breaks down
Inclusive User surfaces accessibility gaps and usability issues across different needs
Skeptical Buyer questions value, clarity, and trust signals before committing
We recommend adding custom personas that match your actual target segments. An enterprise IT buyer evaluating security. A startup founder comparing you to competitors. A non-technical user encountering your product for the first time.
Every insight traces back to a specific moment in a session replay. You can see exactly where a persona got confused, what they clicked, and what they expected to happen. It's not abstract feedback. It's evidence you can point to in a product review.
Are Synthetic Users a replacement for humans?
Synthetic Users is not a replacement for talking to real customers. It's an acceleration layer that lets you run more studies, catch issues earlier, and reserve human research for the decisions that matter most.
Use Synthetic Users as your first line of defense to surface issues fast, then follow up with real humans on the findings that count. You can also leverage our AI Interviewer and Concept Testing features to make collecting user feedback faster and far more efficient.
Synthetic Users extend research beyond prototypes and into production. You can schedule it to test real URLs and real workflows on a recurring basis. The result is a feedback loop that stays connected to your product as it changes. Each run shows what's getting better and what's starting to break as your product product evolves.
Run your first test free
Synthetic Users is available now in Reforge Build. Your first test is on us and takes about five minutes to set up. You can see the results of our sample test here.
No recruiting. No scheduling. No waiting.
Want to go deeper? Use code synthetic for a free month of Reforge Build.
You can build a working prototype in an hour. Getting feedback on it still takes weeks.
Recruiting participants, scheduling sessions, running them one at a time, synthesizing notes. By the time you have real insights, the sprint is over and the feature shipped without them. So most teams are tempted to skip validation entirely. They ship based on instinct, tell themselves they'll validate later, and move on. Later never comes.
AI has made building 10x faster, but validation hasn't kept pace. The gap between what teams ship and what they actually know about their users is growing every quarter. We call this the discovery deficit.
Today we're launching Synthetic Users to close it.
How to collect fast feedback with Synthetic Users
Synthetic Users runs automated feedback sessions on your product using AI-powered personas. You point it at any URL or prototype, define what you want tested, and select the types of users you want feedback from. Within minutes, you get a structured research report with severity-ranked findings, session replays, and an executive summary.
These aren't bots clicking through a script looking for broken buttons. Each persona brings a distinct perspective with its own goals, biases, and expectations. A First Timer notices confusing onboarding language your team stopped seeing months ago. A Power User finds friction in your core workflows. A Skeptical Buyer questions whether your value prop is clear enough to justify signing up.
The feedback sounds like what you'd hear from a thoughtful customer or a sharp PM reviewing your product.
"The hero section leads with features but doesn't explain why I should care as a potential customer."
"This pricing page feels like it's designed for enterprise buyers, but the plans suggest SMB. That's confusing."
"The signup flow asks for too much information too early. I'd drop off after the second form field."
This is strategic product feedback, not QA output.
Five personas, five perspectives
Most products are evaluated, purchased and used by a handful of different people, each with their own scope of work and point of view. You can create personas to match your own users and buyers to get the best possible feedback. Here are a few you might start with:
Design Nitpicker identifies UI patterns, layout issues, and visual design problems
First Timer spots confusing language, unclear navigation, and onboarding gaps
Power User finds friction in core workflows and areas where efficiency breaks down
Inclusive User surfaces accessibility gaps and usability issues across different needs
Skeptical Buyer questions value, clarity, and trust signals before committing
We recommend adding custom personas that match your actual target segments. An enterprise IT buyer evaluating security. A startup founder comparing you to competitors. A non-technical user encountering your product for the first time.
Every insight traces back to a specific moment in a session replay. You can see exactly where a persona got confused, what they clicked, and what they expected to happen. It's not abstract feedback. It's evidence you can point to in a product review.
Are Synthetic Users a replacement for humans?
Synthetic Users is not a replacement for talking to real customers. It's an acceleration layer that lets you run more studies, catch issues earlier, and reserve human research for the decisions that matter most.
Use Synthetic Users as your first line of defense to surface issues fast, then follow up with real humans on the findings that count. You can also leverage our AI Interviewer and Concept Testing features to make collecting user feedback faster and far more efficient.
Synthetic Users extend research beyond prototypes and into production. You can schedule it to test real URLs and real workflows on a recurring basis. The result is a feedback loop that stays connected to your product as it changes. Each run shows what's getting better and what's starting to break as your product product evolves.
Run your first test free
Synthetic Users is available now in Reforge Build. Your first test is on us and takes about five minutes to set up. You can see the results of our sample test here.
No recruiting. No scheduling. No waiting.
Want to go deeper? Use code synthetic for a free month of Reforge Build.