Before comparing alternatives, check which job you are hiring for. Synthetic Users runs AI research interviews and surveys: it answers “what does this audience think about this problem or concept?” If your real question is “does this landing page convert, and where does it lose people?”, that is a different job and no interview tool does it well. Once you know which side of that line you are on, the choice gets easy — humans if you need credibility and lived reaction, synthetic if you need speed and volume, conversion testing if the artefact you care about is a page.
The job Synthetic Users is built for
Synthetic Users generates AI research participants and interviews them. You define an audience, write a topic guide or script, and run a study. The participants carry stable OCEAN personality profiles, so they behave consistently across a session, and they can be grounded in your own material via RAG so their answers reflect your context rather than generic training data. Pricing is usage-based at roughly $2 to $60 per interview depending on depth and configuration.
The company is unusually straightforward about what this is. They describe it as a discovery co-pilot rather than a replacement for real research, and they publish academic references alongside the marketing. In a category that attracts overclaiming, that candour is worth something.
The output is research: transcripts, thematic findings, survey results. It is upstream work. What problem matters, which concept lands, what language the audience uses.
The alternatives compared
| Tool | Method | Turnaround | Price entry point | Needs traffic? | Needs recruiting? | Best for |
|---|---|---|---|---|---|---|
| Synthetic Users | AI research participants, interviews and surveys | Minutes | Usage-based, roughly $2–60 per interview | No | No | Problem discovery and concept exploration |
| Buyer Clone | AI buyer-persona agents walk your live URL | Under 10 minutes | Free, then $19/mo | No | No | Landing-page conversion friction pre-launch |
| User Interviews | Recruits real participants, you run the study | Days | $49/session B2C, $98/session B2B, incentives extra | No | Yes — you moderate | Real qualitative interviews with full control |
| Wynter | Verified B2B panel scores your message | Under 48 hours | Credit-based; subscriptions roughly $20K–$100K/yr | No | Handled for you | ICP-verified message testing with quotes |
| UserTesting | Recorded think-aloud human video | Hours to days | Quote-based, not published | No | Yes — Contributor Network | Observed reaction and usability depth |
| Lyssna | Surveys, preference tests, moderated interviews | Hours | Free tier; Growth $165/mo | No | Yes — own list free, or paid panel | Cheap structured tests on your own audience |
| Maze | Unmoderated prototype and concept tests | Hours to days | Free tier; paid reported from around $99/mo | No | Yes — own users or paid panel | Design and prototype validation |
| Hotjar | Heatmaps, replays, funnels, on-page surveys | After traffic arrives | Free tier plus paid plans | Yes | No | Live-page behaviour and in-context surveys |
Where Synthetic Users is genuinely strong
Three things stand out.
Speed and volume at the exploratory stage. Running twenty interviews takes a morning of scheduling and a week of calendars in the human world. Here it takes minutes, which changes what you are willing to explore. You can afford to test a bad hypothesis, which is how you find good ones.
Personality stability and grounding. OCEAN profiles mean a participant is coherent across an interview rather than a fresh coin flip per question, and RAG grounding in your own documents means answers reflect your product and market rather than a generic average. Those two features do real work.
Intellectual honesty about the method. The framing as a discovery co-pilot sets expectations correctly. Teams that get value from synthetic research are the ones who treat it as hypothesis generation rather than proof, and Synthetic Users tells you that upfront rather than after you have overinterpreted a study.
Why teams look for alternatives
The credibility ceiling. At some point a synthetic finding meets a stakeholder who wants to know how many real people said that. The answer is none, and depending on the room, the finding stops there. This is a fair objection, not a stubborn one, and it is the most common reason teams add a human step.
Interviews are not conversion tests. This is the mismatch that sends most people looking. An interview asks a participant what they think about a concept. A landing page succeeds or fails on whether a distracted stranger with existing scepticism acts within a few seconds of arriving. You can ask a synthetic participant what they think of your homepage copy, but that is a stated opinion about copy rather than a simulation of a buyer moving through a page. Different question, different apparatus.
Cost at volume. Per-interview pricing of $2 to $60 is cheap next to human research and stops being trivial once a study runs to hundreds of interviews across several audiences. Worth modelling before you scale up.
No observed behaviour. Nothing here watches anyone do anything. If your question involves what people actually do rather than what they say, this is the wrong family of tool entirely.
If you want synthetic, but for a different question
Buyer Clone
Paste a URL and a panel of AI buyer-persona agents moves through the actual page, reporting where each buyer type stalled, doubted, bounced or converted, and returning a ranked conversion brief in under 10 minutes. No traffic, no snippet, no recruiting. Free, then $19/mo, $49/mo and $149/mo.
The distinction from Synthetic Users is the input and the output. Synthetic Users takes an audience and a script and returns research findings. Buyer Clone takes a URL and returns a list of the specific things on that page that lose buyers, ordered by how much they cost you. The sample report shows the format, and pre-launch conversion testing explains the method.
Pick this if you have a page built and you want to know where it leaks before you send traffic to it.
Don’t pick this if you are still working out what to say. Testing the page before you have a proposition worth testing is premature, and that is exactly where research interviews earn their place.
If you want real humans
User Interviews
Recruits real participants and hands the study design to you. Published rates are $49 per session for B2C and $98 for B2B on pay-as-you-go, with advanced B2B targeting adding roughly $45 to $49 per session, and incentives billed on top.
Pick this if you want genuine human qualitative data and you have someone who can moderate and synthesise well. Twelve real interviews is a defensible sample in a way a synthetic study is not.
Don’t pick this if nobody has time. The platform fee is small next to the calendar cost of running and analysing sessions.
Wynter
A panel of 80,000+ B2B professionals verified via LinkedIn profile and corporate email, returning quantitative scores plus verbatim quotes in under 48 hours. Credit-based at roughly $1 per credit; subscriptions run about $20,000 to $100,000 a year, with pay-as-you-go costing around 50% more per credit.
Pick this if your audience is a specific senior B2B role and you need evidence a sceptic will accept. Verification is the product and it works.
Don’t pick this if the budget shape does not fit. This is a programme purchase, not a one-off.
UserTesting
Recruited participants narrate their way through your site or Figma prototype on video. Pricing is quote-based with nothing published.
Pick this if you need to see hesitation rather than read about it. Video moves internal opinion in a way transcripts do not.
Don’t pick this if you want a same-day answer or predictable per-test costs.
Lyssna and Maze
Both give structured tests with real respondents. Lyssna covers surveys, preference tests, five-second tests and moderated interviews, free for 3 seats and 15 self-recruited responses, with Growth at $165/month and unlimited self-recruited responses. Maze focuses on unmoderated prototype and concept testing, free for one active study and 30 responses, with paid plans reported from around $99/month and panel recruitment billed separately.
Pick these if you have your own audience to send a link to. Self-recruited responses are where both become excellent value.
Don’t pick these if you need niche B2B respondents, since panel costs for hard-to-reach professionals rise steeply.
Hotjar
If the page is live, on-page surveys catch real visitors at the moment of hesitation, alongside heatmaps and replays. Free tier plus paid plans, with pricing in flux since the Contentsquare merger.
Pick this if you have traffic. Asking a real visitor why they are leaving, as they leave, beats any simulated interview.
Don’t pick this if you have not launched, because there is nothing to record and nobody to survey.
Where Buyer Clone fits, and when Synthetic Users is still right
The clean division is stage. Synthetic Users works on the question of what to say. Buyer Clone works on whether the page saying it actually converts. Running them in sequence is coherent: sharpen the proposition through synthetic interviews, build the page, then test the page as a page.
The limits are worth stating plainly. Buyer Clone models structural friction well — unclear value proposition placement, buried or competing CTAs, missing proof, confusing pricing presentation, heavy forms. It is directional on emotional nuance and on exact price sensitivity, and it is a prediction rather than an observation. It does not replace talking to humans when you need genuine emotional reaction or evidence to put in front of a board.
Synthetic Users remains the better choice when:
- You are upstream and exploratory. The question is what problem matters or which concept resonates, and there is no page yet.
- You want research structure specifically: topic guides, interview scripts, thematic analysis, large synthetic surveys.
- You want participants grounded in your own customer data, which the RAG feature handles directly.
- You need continuity across a study, where the same personality-stable participant answers a sequence of related questions. That is an interview construct, not a page-walkthrough construct.
Deciding in three questions
Do you have a page built? No: research first, whether synthetic or human. Yes: test the page as a page.
Does the answer need to survive a sceptical stakeholder? Yes: use humans. Wynter for B2B verification, User Interviews for control, UserTesting for video. No, it is for your own direction-setting: synthetic is faster and far cheaper.
Are you asking what people think, or what a page does to them? What they think: Synthetic Users, or real interviews. What the page does: conversion testing before launch, behaviour analytics after.
Frequently asked questions
Is Buyer Clone a Synthetic Users alternative?
Only if your underlying need was landing-page conversion rather than research. Synthetic Users runs AI interviews and surveys to explore problems and concepts; Buyer Clone sends AI buyer-persona agents through a specific URL and reports where the page loses buyers. Teams often use both, with research upstream to shape the message and conversion testing downstream to check the page built around it.
What is the closest like-for-like alternative to Synthetic Users?
For the same job with real humans, User Interviews is the closest structural match, since it recruits participants and leaves the study design to you at $49 per B2C session and $98 per B2B session plus incentives. For B2B message testing specifically, Wynter covers similar ground with verified respondents, at a very different price point.
Is synthetic research accurate enough to act on?
It is best treated as hypothesis generation rather than evidence. Synthetic Users itself frames the product as a discovery co-pilot, which is the correct posture. Use it to decide what is worth investigating, then validate the decisions that carry real cost with real people or with observed behaviour.
How much does Synthetic Users cost compared with human research?
Usage-based at roughly $2 to $60 per interview, against $49 to $98 per session for recruited humans through User Interviews before incentives, and roughly $20,000 to $100,000 a year for a Wynter subscription. The cost gap is the entire argument for synthetic research, and the credibility gap is the entire argument against it.
Can I test a landing page with synthetic interviews?
You can show a page to a synthetic participant and ask what they think, but you will get a considered opinion about copy rather than a simulation of buyer behaviour. Real visitors skim, doubt and leave within seconds, and a conversion test is built to model that sequence against the actual page. If the artefact you care about is a page, use a tool that takes a URL as its input.