Alina
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Anna
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Bela
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Christian
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Claudio
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Elena
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Flora
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Georg
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Heidi
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Ingmar
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Kelly
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Nneka
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Santiago
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Sophia
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Svenja
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Digital Twin API

Know what works
– before you invest.

Use the Digital Twins API to test your texts, campaigns, concepts – or any other decision that counts.
With real target groups, based on 1 million+ real survey profiles.

Get started now

Read API docs

85-98 %

Accuracy

No LLM personas. Each Twin is based on real survey data from over 1 million profiles, collected since 2017.

10 x

Cheaper

Traditional target audience studies cost thousands of euros per cycle. Our model costs only a fraction of that while providing comparable insights.

~ 20 s

Until you receive feedback

Instant results. No weeks of preparation, no scheduling, no waiting for test results.

THE NEUROFLASH DIGITAL TWIN CONCEPT

Your target group.
Digital. On demand.

Our Digital Twins are AI-powered representations of real people. They are built on up to 255 data points per person from over 1 million real surveys since 2017. No LLM hallucinations. Humanly anchored. Accessible via API

Ingmar

We're creating a LinkedIn ad for a new B2B product. What needs to be in it to make you click?

To be honest, if I were to look at a LinkedIn ad, it would have to say that it makes my job easier and allows me to complete my tasks with more independence.

Kelly

We're creating a LinkedIn ad for a new B2B product. What needs to be in it to make you click?

If it's a B2B product, it needs to get straight to the point. What's in it for me? And fast. No long-winded rambling.

Anna

We're creating a LinkedIn ad for a new B2B product. What does it need to include to get you to click?

So, to get me to click, the ad really has to show exactly what the product does. Not just marketing fluff.

OUR DIGITAL TWINS VS LLM-PERSONAS

Why not just ChatGPT?

The neuroflash Digital Twins are based on real survey data.
LLM personas are based on assumptions.

Data source

Output

Accuracy

Over 1 million real survey profiles since 2017

Complex individuality included

85-98%

Prompt-based, no actual data source

Overgeneralization

~55%

Data source

neuroflash Digital Twins Over 1 million real survey profiles since 2017

Generic LLM Personas Prompt-based, no actual data source

Output

neuroflash Digital Twins Complex individuality included

Generic LLM Personas Overgeneralization

Accuracy

neuroflash Digital Twins 85-98%

Generic LLM Personas ~55%

Server in Germany

GDPR-compliant

THIS IS HOW YOU START

One API. Two functions. Three steps.

From target group feedback to content creation. Everything programmatic, everything in your stack.

Get access

Create a service account in the neuroflash settings and get your API credentials. The API key gives you automated access to many neuroflash functions – and new ones are being added all the time.

Integrate

Connect the API to your app, your workflow or your cloud environment. And then you’re ready to go. The API documentation will guide you through the setup.

Build and scale

Play through your use cases, build workflows and grow with your requirements. Do you need even more options with the API? Talk to us.

Now also as MCP

MCP Server for Claude Desktop, Cursor and other AI tools.

To the MCP

View complete API documentation

USE CASES

What you can do with it.

Survey individual Twins, start group surveys or have entire panels vote.

This gives you the confidence to make decisions on any issue.

Ad & text validation

Validate your ideas before you start implementing them.

New positioning, product concept, or go-to-market strategy? Put your ideas to the test before investing resources.

Test concepts

Test ads and content before you approve the budget.

Let real target audience profiles guide your headlines, CTAs, and messaging. You’ll get not only the results but also the reasoning behind them.

Analyze your competitors from your customers’ perspective.

Decide which feature to build next.

Your use cases

What decision needs to be made?

What’s on your mind today? Which question can be answered with genuine feedback from your target audience? Use Digital Twins to meet your specific needs.

Product & feature testing

Build what your users really needbrauchen

Understand your target group’s pain points and let them prioritize. Which features have priority? Where is the real need? Close the loop with assumptions in sprint planning.

Anticipate objections before your sales team encounters them.

Test markets without investing in them.

Churn prevention

Understand why customers are leaving—before they do.

Identify sources of frustration, unmet expectations, and factors driving employee turnover. This way, you can take action before dissatisfaction leads to resignations.

Scaled target audience survey

Survey 500 personas at once. No recruitment required.

No panel, no wasted time, no budget for incentives. Launch a survey in minutes using synthetic profiles that match your target audience.

Optimize headlines and CTAs with real audience feedback.

Validate your rebranding before it goes live.

PRICES

Your API. Very easy.

Choose your access. Always to all functions.

Popular

Pay-as-you-go

Ideal for developers and flexible use

From 0,50€

per 1.000 tokens · usage-based

0,50€

/ 1K Tokens

Full access to the app, API & MCP
Advanced AI models
No subscription required
Ideal for prototypes, experiments, and variable workloads

Get started now

Enterprise

Tailored for teams and agencies looking to scale.

Customized offer

Prices tailored to your needs

Ab 500€

/ Monat

Custom number of target audience profiles & brand voices
Scalable capacity – tailored to your team size
Premium AI models for the highest output quality
Get the most out of Audience Intelligence—for your entire team

FAQ

Frequently asked questions. Direct answers.

What exactly are neuroflash Digital Twins?

AI-supported images of real people, based on over 1 million real survey profiles with 68-255 data points per person. No LLM-generated personas.

Which target groups can I test?

We currently have 20 selected target group segments available for you as Digital Twins. These can be used immediately. Soon you will also be able to create your own target groups as digital twins. And if you would like to start using your own data today, we will be happy to create the right target groups for you individually.

How do I log in?

You create a service account in the neuroflash settings and receive your API credentials. Details on the auth flow can be found in the documentation.

Can I use the API and the web app with the same account?

Yes, one account and one quota, regardless of whether you work via web app or API.

READY?

Stop guessing. Start predicting.

Get your API key and get started with the Digital Twins.
Real target group feedback in seconds.

Get started now

Read API docs