Holdfast Synthetic · AI consumer panels
Synthetic consumers built with the latest generation of AI and proven market research methods. Designed by industry experts with more than 20 years of experience across many countries and clients in every sector.
Natural shampoo, 250 mlFrance · women 25–54 · 500 respondents
Companies that have trusted Holdfast Intelligence
Configure, order and read your report in a few minutes.
Four standard research methods, ready to order online.
Describe your product idea, benefit and price — compare up to three versions.
purchase intent, uniqueness, relevance, believability, value, what people like and dislike, winner.
Test 3 to 6 price points for your product.
acceptable price range, optimal price, purchase likelihood and revenue index at each price.
Size, scent, price, pack, claim… up to 5 attributes with 2 to 5 levels each.
importance of each attribute, value of each level, market simulator, willingness to pay.
Upload up to 3 ads (image and/or copy) and see which one works best.
stand-out, understanding, liking, credibility, relevance, desire to buy, emotions and message take-away.
The most advanced language models have learned from enormous volumes of text: consumer opinions, reviews, forums, articles and published research. This lets them simulate how different consumer profiles react, consistently and in seconds. It is a step forward that makes market research accessible: what used to take weeks and thousands of euros is now within reach of any brand.
The model has learned how people talk about products, brands, prices and habits in each country.
We create hundreds or thousands of personas that follow the real population of the country: age, sex, income, household, region and shopping style.
Each persona answers the same validated questionnaire a real respondent would see, on closed scales.
We compute the results, segments and a stability index, and the AI writes the executive summary.
Anticipate behaviour instead of guessing it. By combining AI with research methodology, we forecast how consumers are likely to react to your product, price or ad, and show you how stable each result is.
Use it to screen and prioritise ideas; confirm high-stakes decisions with real people.
Test before you invest: more ideas, earlier, for a fraction of the budget.
Traditional figures: typical timing and budget of a concept test with an online panel; they vary by country and provider.
Results the same day, before the meeting where the decision is made.
Screen ideas for a few hundred euros and keep your research budget for the finalists.
Change the claim, the price or the pack and test again the same afternoon.
No real person sees your unreleased product, so nothing leaks to the market.
Synthetic panels work best in mature, frequently bought categories with a lot of public knowledge about how people choose.
Our recommended categories.
Available and reliable for screening ideas.
Available; we recommend validating with real people.
Consumer markets only (B2C / D2C). We do not simulate business buyers.
Synthetic research is fast and affordable. We designed it so results are stable, explained and honest about their limits.
Personas follow each country’s real age structure, with income, household, area and shopping style. The same audience always gets the same panel.
Each test uses fixed, industry-standard questions and closed scales, so results are comparable between studies.
Every study is analysed on two halves of the panel and compared. You see how consistent your result is.
Larger studies are reviewed by a senior consultant before delivery.
Every report states that respondents are simulated, with the method, model and date.
Screen ideas fast with synthetic data, then confirm the winner with real consumers on Holdfast Pulse.
Choose the test, enter your concepts, prices or attributes, and define the audience: country, age, sex, income and category.
Pick your sample from 100 to 2,500. Price and precision update instantly.
Pay securely. Your synthetic panel answers the questionnaire right away.
Executive summary, charts, segments, Excel and PDF — in under an hour, or 24 h with expert review from €1,000.
From €3.00 per respondent at 100 down to €1.90 at 2,500. One-off payment, no subscription.
Prices excl. VAT. · From €1000, a senior consultant reviews the report before delivery.
| Sample | Per respondent | Total | Simulation precision | Delivery |
|---|---|---|---|---|
| 100 | 3 € | 300 € | ±9.8 pts | Under 1 hour |
| 200 | 2,94 € | 588 € | ±6.9 pts | Under 1 hour |
| 300 | 2,89 € | 867 € | ±5.7 pts | Under 1 hour |
| 400 | 2,83 € | 1 132 € | ±4.9 pts | 24 h, expert-reviewed |
| 500 | 2,78 € | 1 390 € | ±4.4 pts | 24 h, expert-reviewed |
| 1 000 | 2,53 € | 2 530 € | ±3.1 pts | 24 h, expert-reviewed |
| 1 500 | 2,30 € | 3 450 € | ±2.5 pts | 24 h, expert-reviewed |
| 2 000 | 2,09 € | 4 180 € | ±2.2 pts | 24 h, expert-reviewed |
| 2 500 | 1,90 € | 4 750 € | ±2 pts | 24 h, expert-reviewed |
It tells you how much a result can vary if you run the same simulation again (95% confidence, for a result of 50%). With 100 respondents, a 40% purchase intent can come out between 30% and 50%; with 1,000, between 37% and 43%.
It does not measure the distance to the real market: synthetic respondents are not a random sample of real people. For decisions with high stakes, confirm the winner with real consumers. For stable comparisons we recommend 400 respondents or more.
“I wanted every brand, big or small, to be able to test an idea before investing in it.”
Jacques de Raucourt has more than 20 years of experience leading strategy, market research and customer experience for consumer brands across Europe, Latin America and North America. Holdfast Synthetic puts that experience into every questionnaire, every panel and every report.
Jacques de RaucourtFounder, Holdfast Intelligence
Talk to an expertAnswers produced by AI personas that represent real consumers of a country: their age, income, household, habits and shopping style. A large language model, trained on a vast amount of public text, simulates how each persona would answer a standard research questionnaire.
No, and we will not claim it. Synthetic panels reproduce general patterns well — which attribute matters most, price sensitivity, which concept is clearer — but they tend to be more uniform than real people and are weaker in brand-new or niche categories. Use them to screen and prioritise, then validate the decisions that matter with real consumers.
Very close. The same audience always uses the same panel, questionnaires are fixed and the AI runs with minimal randomness. Differences come mainly from sample size: from 400 respondents, key results typically stay within a few points. Each report shows a stability index.
France, Spain, United Kingdom, Germany, Italy, United States, Mexico, Chile, Colombia, Argentina, Brazil, Portugal, Netherlands, Belgium, Switzerland, Austria, Ireland, Sweden, Poland, Canada, Australia, Peru, Japan.
Usually under an hour after payment. Studies from €1,000 are reviewed by a senior consultant and delivered within 24 hours.
Your material is used only to run your study. It is processed by our AI provider to generate the answers, stored in your account and never shared with other clients. No personal data of real people is involved.
Yes. Every report ends with a button to run the winning concept with real people on Holdfast Pulse, or to talk to a Holdfast consultant about a full study.
Configure your test in 5 minutes and see the price before you pay.
Want to ask real people instead? Holdfast Pulse