Kapari
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The test bench for your decisions

A decision to make? See how it lands, before you commit for real.

Put it in front of an array of voices that owe you nothing, and hear who buys in, who pushes back, and the unexpected objection that could derail everything.

Put your decision on the test bench: voices grounded in real US Census Bureau and Gallup data, and an engine built on the work of Kahneman, Klein and Sibony on decision-making. Not a poll, not a prediction: a test bench, grades published.

Sound familiar?

Graded on 43 famous US decisions of the past: more than three real objections out of four caught. See its report card ↓

Discover
In two minutes

Kapari in action.

You describe the decision, Kapari composes the panel and puts it to the test. The range of reactions, and the objection nobody saw coming.

The hallway test

Your hallway holds neither your customers nor your skeptics.

Today, the announcement gets tested on two or three trusted colleagues, between two doors. It is fast, it is free, and it is reassuring. That is exactly the problem.

The hallway

Voices that owe you something

Nobody likes saying no to the boss. And the hallway looks like you: same profiles, same reflexes, same blind spots. It holds neither your customers, nor your skeptical employees, nor the voice that will derail the announcement when the day comes.

The Kapari panel

Voices that owe you nothing

An array of contrasting profiles, grounded in real data, reacts to your announcement: some buy in, others push back, and the objection the hallway would never have raised comes out before the announcement, not after.

How it works

Four steps, a few minutes.

A panel composed in minutes, a reading the same day, the adjustment right after. You frame, you compose, you question, you read the range. The AI walks you through from start to finish.

01

Frame the context and the decision

State your situation and the decision to confront, in a few words. The AI copilot rephrases, clarifies the stakes and suggests the tensions to test.

02

Compose the target panel

Choose and weight the voices that matter. The AI suggests the relevant profiles and turns them into embodied voices, calibrated on real data.

03

The panel deliberates

Run the simulation. Each voice reacts with its feeling and its arguments, then the debate plays out over several rounds: voices hear each other, answer each other, some switch sides. The final range surfaces buy-in, fractures and objections.

04

Read the range and the next steps

You get the map of reactions: where it lands, where it sticks, and why. The copilot synthesizes the fracture lines and suggests adjustment leads.

Embodied diversity over headcount. A panel of embodied voices covers angles an eight-person focus group leaves in the dark.

In plain terms. One AI composes sociological profiles from public data, another makes them react to your decision. You get plausible reactions to decide before you announce; no real person is ever interviewed.

The custom panel

Your context, your people.

Kapari is not a generic audience. You compose the panel that matters to you, and you weight each voice.

+Configurable segments. Customers, employees, market, general public. You choose who sits on the panel.
+Embodied voices. Each segment speaks in its own language, with its priorities and its objections.
+Three weightings, your choice. Balanced to miss no angle, a demographic reflection calibrated on Census data, or weights you set yourself. The mode is always displayed, never an opinion measurement.
+Reproducible. Same context, same settings, comparable results. You test variants cleanly.
Active panel6 segments
Panel composition weights, not an opinion rate.
🛒Regular customers0.28
🔍Prospects0.18
Premium customers0.16
👥Internal teams0.16
📣Media and amplifiers0.12
🌍General public0.10
Everything to decide

Far more than a reaction.

You do not just read how it lands. You question the voices, compare your options, rewrite, spot the risk, and walk away with a deliverable.

Compare up to 4 options

Test several versions of a decision or a message on the same panel, and see which one rallies, and where each one sticks, family by family.

Rewrite in one click

From the objections that surface, Kapari suggests a version that defuses them. You leave with the talking points already drafted.

Test a visual

A poster, a campaign visual, a slide: the panel reacts to what it sees, not only to a text.

Up to one hundred voices

Compose the panel that really matters: dozens of contrasting profiles, grounded in data, never a generic audience.

The risk profile

Before you announce, a risk scan dimension by dimension: internal climate, operations, reputation, buy-in.

A deliverable, not a screen

Export the reading as a branded PDF or an Excel workbook with charts, and share a read-only, revocable link that never exposes your context.

Ask them why

A reaction intrigues you? Question the voice: it answers in character, faithful to its profile. And ask the whole panel a question after the deliberation.

What if one family weighed more?

After the verdict, vary each family's weight and watch the verdict recompute before your eyes, without rerunning the simulation.

A file that lives

Each decision keeps its thread: the variants put on the test bench, and the reality check you record after the announcement. Kapari holds its own sheet against what actually happened.

Due diligence

Walk in prepared, in front of those who will judge.

Board, leadership team, employee representatives, investors: your decision will be judged. And the first question will be whether you did your homework.

The objections, already heard

You walk into the room having already heard the criticisms waiting for you, answers ready. The question meant to destabilize you becomes the one you were expecting.

A document to put on the table

The PDF report, with its transparency notice, written to be shown around you, the Excel export with charts, and a read-only share link you can revoke at any time. Proof that the work was done.

A public method, with published grades

The method behind your file is published and graded on real past decisions, good and bad report cards included. You are not defending a black box.

And when you need to explain it around you: the exact wording to announce it to your people.

The proof

We hid the end of the story from it. Its job: find it again.

It is not a poll and it predicts nothing: so we grade it. 43 famous US decisions of the past, from the Bud Light backlash to the Reddit blackout, submitted to Kapari without their ending. The answer key: 180 objections actually voiced at the time, verified one by one in dated articles. On average, it recovers 84% of them, more than four in five.

It surfaced the retail investors' betrayal on its own

Robinhood halting GameStop purchases, 2021: Kapari recovers 100 percent of the objections actually voiced, from the broken democratization promise to the class actions filed the same day. Its advice on decisions received this way: do not expose them as is.

It can tell a well-run hard call from a disaster

Airbnb's 2020 layoffs and Stripe's in 2022, both praised as the textbook cases of the genre: on the test bench they come out tense but manageable, objections to defuse, never a red light. Bud Light's 2023 misfire, at identical stakes, reads far darker. The difference is the one that matters.

The exam sheet we could have hidden

The Airbnb layoffs of 2020: its worst coverage score, 33 percent of the documented objections recovered on the latest exam. The grade is published as is, on the same page as the others. Seeing that one is what lets you trust the rest.

Every version retakes the exam

New setting, new knowledge, new model: the full case set is replayed before anything ships. If the overall grade drops, the update waits.

The decision library

The more you use it, the better it knows you.

Your decisions don't live in a heap. File them by client or engagement, give each folder its context, and Kapari reuses it on every simulation in that folder. A consultant juggling several clients keeps distinct contexts and histories, and never starts from scratch.

One folder per client

Sort your Kaps into folders and sub-folders, by client, by engagement, by topic. Each thread stays separate, findable, yours.

Context that compounds

The client's sector, their constraints, the people they must win over every time: describe them once at the folder level. That context enriches every new simulation. The more you feed it, the closer the panel fits that specific client.

The real world loops back

After the announcement, note what actually happened. The folder keeps that feedback next to the simulation, to hold Kapari's take against the facts, decision after decision.

The sources

Profiles grounded in the real.

Each voice draws its depth from public data and published research. The data feeds the composition, it never becomes a numbered verdict.

Public statistics

Profiles calibrated on US Census Bureau, Bureau of Labor Statistics and Gallup series: population structure, occupations, telework, ideology, stock ownership. Every figure checked against its primary source, and dated.

Social science

Published work in sociology, social psychology and behavioral economics gives each voice its priorities, reflexes and friction points: psychological contract breach, loss aversion, betrayal aversion, moral foundations. Voice texture is written by Mistral Large.

Deep contexts

Each voice backs what it says with public references, checked one by one before they enter the base. Credibility comes from the sources, honesty comes from the output.

Profiles calibrated on public data, built to compose the panel, not to produce a score. Serious sources guarantee the raw material; the published exam checks what Kapari does with it.

And if you are wondering what Kapari does that a general-purpose chatbot does not, the answer fits on one page, side-by-side case included: Kapari vs. a chatbot.

Use case

A software company raises prices 30 percent. It sees the split before the email goes out.

A 40-person software company in Denver sells scheduling software to small service businesses. On January 1 it raises every plan 30 percent and shuts down the free tier: roughly 18,000 accounts that bring in about 60 percent of new signups, 4 percent of revenue, and most of the support load. The company has 14 months of runway and has not touched its prices in four years. Kapari put that announcement in front of a panel of 66 simulated voices, inside the company and outside it. The test bench came back split down the middle: 40 percent leaned favorable, 20 percent came back mixed, 40 percent leaned opposed, and reception risk read high. The useful part is what the two ends argue about. Every free-tier voice sits at minus 75 or lower, and none of them argue about the 30 percent. They say a promise was broken.

The split, visible before the email goes out: who leans which way, and the broken promise to defuse first. Plausible reactions to adjust before you hit send; the real market stays the real market, and Kapari means you never walk in blind.

An open-plan software office at night, one desk still lit 66 simulated voices, anonymous profiles
Trust and data

Your data, our discipline.

The same honesty as on our results: we describe the chain as it is, not as it would look good in a brochure.

Walled off per account

Your Kaps, folders and contexts are accessible only to you, protected at two levels: your signed session and an identity filter on every database access. A Kap is never visible to a third party, unless you create a share link yourself, and that link then strips the private context you had entered.

Minimization first

Kapari never sends an identifiable individual to the model. Panel voices are anonymous sociological profiles calibrated on public data, never real persons.

Powered by Mistral

Voice text is generated by Mistral Large, the frontier model of Europe's leading AI lab, with inference executed on Mistral's infrastructure in the European Union.

No training

Your content is never used to train a model, neither ours nor our providers'.

The method does not depend on the model

The AI writes the voices' texture. All the aggregation, Kapari's core, stays deterministic and stays with us.

Calls are routed through a US technical gateway that does not retain them: zero prompt retention, technical metadata only. We describe the chain as it is.

The promise

A compass, not a crystal ball.

The panel composes credible reactions to make you think, spot the blind spots and choose what to test for real. Kapari informs the decision, it does not make it: it does not predict the future and does not replace field research. That transparency is exactly what makes the grade credible.

"We do not promise you will make the best decision. We do promise that when you make it, you will have the most complete picture we can give you."

This promise is not talk: it is documented, exam sheet by exam sheet. One more thing, proven on the test bench: Kapari measures how a decision will be received, not what the decision-maker will end up doing. Netflix's password crackdown was received brutally, then won; the reception was real both times.

What if you were the CEO?

Announce a company decision and watch a panel react, voice by voice, as the reactions sharpen. The public, playable demonstration of what Kapari does for your decisions.

Play the CEO demo

Decide without blind spots.

Request access and run your first decision on the test bench. Kapari is in beta: it is free, five decisions a month, no card asked, and access is granted in limited numbers. Pierre answers himself, within 2 business days.

The Kapari that took this exam is exactly the one that will study your decision.