> ## Documentation Index
> Fetch the complete documentation index at: https://docs.buildbetter.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Synthetic Personas Overview

> Create AI-powered synthetic personas from your real customer data and use them to chat, test concepts, and run simulated research at scale

Synthetic Personas turn your real customer data into AI personas you can talk to, test concepts against, and run research studies with. Each persona is grounded in the signals, calls, and feedback you've already collected, so their answers reflect what your real customers actually said.

## What You Can Do

<CardGroup cols={2}>
  <Card title="Generate Personas from Data" icon="user-plus">
    Filter your signals and generate a synthetic persona whose profile, goals, and pain points are grounded in real customer evidence.
  </Card>

  <Card title="Chat With a Persona" icon="comments">
    Have a one-on-one conversation with a persona — either roleplaying as them or analyzing how they'd react.
  </Card>

  <Card title="Run Persona Tests" icon="flask">
    Show a concept, message, or set of options to a persona or a whole panel and collect structured reactions, scores, and reasoning.
  </Card>

  <Card title="Create Marketing Variants" icon="images">
    Generate AI image variations for marketing assets, compare results, and review synthetic persona feedback.
  </Card>

  <Card title="Build Research Panels" icon="users">
    Group personas together — including replica sets that simulate within-segment variation — to test ideas against a realistic audience.
  </Card>
</CardGroup>

## Core Concepts

| Concept                   | What It Means                                                                                                                                                                                     |
| ------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Persona**               | A synthetic customer profile generated from your signals. Captures demographics, job context, goals, pains, motivations, and company context — with citations back to the signals that shaped it. |
| **Panel**                 | A group of personas you can test against together. Can include single personas and replica sets.                                                                                                  |
| **Replica Set**           | Multiple AI-generated variations of one base persona. Simulates how a message lands across slightly different respondents in the same segment.                                                    |
| **Variation Strength**    | Controls how much replicas differ from the base persona — low for subtle differences, high for broader range.                                                                                     |
| **Test Run**              | A research study where personas respond to a prompt or concept. Returns per-respondent reactions and aggregate metrics.                                                                           |
| **Marketing Variant Run** | A marketing project that combines target audiences, uploaded assets or text ideas, AI-generated image variations, comparison, persona feedback, and downloadable winning variants.                |
| **Chat Mode**             | *Talk at* (roleplay as the persona in first person) or *Talk with* (analyze the persona in third person).                                                                                         |
| **Respondent**            | An individual persona or replica that participated in a test run.                                                                                                                                 |
| **Synthetic Company**     | An AI-generated company context that anchors a persona's industry, size, and buying process. Multiple personas can share one company.                                                             |

## Why Synthetic Personas

<Tabs>
  <Tab title="Product Teams">
    * Pressure-test feature concepts before a single build cycle
    * Get first-read reactions to positioning, copy, and designs from data-grounded personas
    * Compare how different segments (new prospects vs. power users) react to the same idea
  </Tab>

  <Tab title="Marketing & GTM">
    * Validate messaging and value props against your actual ICP, not invented personas
    * A/B two headlines or landing concepts across dozens of synthetic respondents
    * Generate realistic quotes, objections, and reactions for positioning work
  </Tab>

  <Tab title="Research Teams">
    * Scale qualitative research by running concept tests against panels of hundreds of replicas
    * Run single-choice studies to see which option resonates and why
    * Save results to Knowledge pages so insights stay with your team
  </Tab>

  <Tab title="Sales & CS">
    * Rehearse discovery or objection-handling conversations with a persona that sounds like your real buyer
    * Validate expansion or renewal pitches against personas built from your current book of business
  </Tab>
</Tabs>

## How It Works

<Steps>
  <Step title="Generate a persona">
    Filter signals to the audience you want to capture, then generate a persona. The AI produces a full profile and cites the signals that shaped it.
  </Step>

  <Step title="Chat or group into a panel">
    Open a persona to chat directly, or add them to a panel alongside other personas and replica sets for coordinated testing.
  </Step>

  <Step title="Run a test">
    Write a prompt (or add options and images for a choice test), pick an audience, and launch. Each respondent returns a scored, tagged, cited reaction.
  </Step>

  <Step title="Create marketing variants">
    Start from a persona panel or marketing project, upload assets or text ideas, generate variations, compare results, and download the winning assets.
  </Step>

  <Step title="Review results">
    See aggregate scores, sentiment, top themes, and per-respondent breakdowns. Export to PDF or save the findings to a Knowledge page.
  </Step>
</Steps>

<Info>
  Synthetic Personas is gated per organization. If you don't have access yet, you'll see an unlock page inside the app — request access from there and our team will turn it on for your workspace.
</Info>