Creating a Simulation
Walk through the five-step wizard — setup, audience, questions, model settings, and generation.
Click New Simulation to start the wizard. It has five steps.
1. Simulation Setup
Name the simulation and describe its objective, and pick a simulation type: Personal Opinion, Product Market Fit, User Experience, Brand Perception, Market Research, Customer Satisfaction, or Custom.
2. Target Audience
Define who the simulated respondents represent — covered in full in Building your target audience.
3. Simulation Questions
Add questions manually with Add Question, or click AI Create to generate a full set from your research objective. Available question types:
| Type | What it collects |
|---|---|
| Multiple Choice | One or more options from a predefined list |
| Yes/No | A binary answer |
| Rating Scale 1–10 / 1–5 | A numeric rating |
| Short Text | A brief open-ended response |
| Long Text | A detailed, paragraph-length response |
| Open Ended | A conversational question the AI discusses with the respondent |
Demographics are collected automatically for synthetic personas — you don't need to add demographic questions yourself.
4. Model Settings
- AI Personas Count — how many simulated responses to generate (capped by your plan)
- Response Mode — Human-Like (recommended: mimics real people, with emotions and minor inconsistencies) or Custom Persona (advanced: tune Response Consistency, Communication Style, Emotional Tone, Knowledge Depth, and Opinion Strength individually)
- Optionally generate a single sample response first to sanity-check your questions before committing to the full run
5. Generation
Click to run. Synthight generates responses from your persona panel; you can track progress from the simulation's detail page once it starts.
Next steps
Frequently asked questions
What simulation types can I choose from?
Do I have to write every Simulation question myself?
Do I need to add demographic questions to my Simulation?
What's the difference between Human-Like and Custom Persona response modes?
Can I test my questions before running the full Simulation?
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