Understand personality
the scientific way

Sentino combines validated psychometric frameworks — Big Five, NEO PI-R, RIASEC and more — to build rich personality profiles from any source: self-description, tests, LinkedIn and more. Write in any language — it's detected and analyzed automatically.

No 200-question test. Write a few sentences and see your profile — free.

Create your profile — free API docs

Learn more about the platform

Try it — describe yourselfLive · no sign-up

🌍 Any language works.0/500

…or try an example

How it works

Write or upload

Add a self-description, paste an interview transcript, or answer a questionnaire. Any text about a person works — in any language.

We do the processing

Behind the scenes, your text is turned into structured personality signals and mapped onto validated scientific constructs.

Get a personality profile

Scores across Big Five, NEO PI-R, RIASEC and custom inventories — grounded in decades of psychometric research.

And much more

Chat with personality-aware bots, generate shareable reports, compare people, and plug it all into your own product via the API.

Read the full step-by-step walkthrough

Who can you profile?

Yourself and the people around you

🪞

Your own profile — free

Write self-descriptions, answer questionnaires, or upload interviews. Build a deep, evolving personality model of yourself.

👥

Profiles of others

Add friends, colleagues, partners. Send them an invite to fill in their own profile, or build it yourself from notes and observations.

See it in action

What a profile looks like

From a few sentences to a full picture — watch a profile come together, step by step. No sign-up needed.

Add a self-descriptionStep 1

“I love diving into new ideas and rarely say no to an adventure. I plan ahead, but I'm happy to improvise when a better path shows up. People say I'm easy to talk to and quick to lend a hand.”

Free-text · interview · notes — anything worksAdd observation

Self-description

Illustrative sample — not a real profile. Your own is built from your text.

Scientific inventories

Validated frameworks, ready to use

Popular, research-backed inventories come built in — and home-made ones are just as welcome. Use the ones you know, or define your own.

Big Five (OCEAN)

OpennessConscientiousnessExtraversionAgreeablenessNeuroticism

The most widely used personality model in academic research. Predicts life outcomes from career success to relationship quality.

NEO PI-R

30 facets6 domainsclinical-grade

The gold standard clinical personality instrument. 240 items, 30 facets across the five major personality domains.

HEXACO

6 dimensionsHonesty-Humilityresearch-backed

Extends the Big Five with a sixth Honesty-Humility factor — a strong predictor of integrity and fairness.

RIASEC / Holland Codes

RealisticInvestigativeArtisticSocialEnterprisingConventional

Vocational personality model that maps interests to career types. Used in career counselling worldwide.

Dark Triad

MachiavellianismNarcissismPsychopathy

The classic model of socially aversive traits — widely studied in organisational and clinical psychology.

Custom & home-made inventories

YAML configany domainfun & serious

Define your own constructs — from attachment styles to love languages. If it can be described in text, it can be scored. Custom is great.

40+

Validated inventories, ready to use

10k+

Research-backed personality items

300+

Scored traits, facets & constructs

Any

Input information — text, tests, LinkedIn

Pricing

Free to start, paid when you scale

Profiling yourself is free forever. Upgrade to profile other people, send invites, and use the API.

Free

Build and explore your own personality profile.

Profile yourself — free
Answer questionnaires
Explore inventory scores
Send invites to others

Get started free

ProAPI

$19/mo

Profile the people around you.

Everything in Free
Profile other people
Send questionnaire invites
API keys & programmatic access
Add other people

Start free trial →

BusinessAPI

$99/mo

Scale across teams and clients.

Everything in Pro
Bulk import
Higher monthly limits
Add other people

Start free trial →

EnterpriseAPI

Custom

Custom deployments and support.

Everything in Business
Data export
Priority support
Custom limits
Add other people

Questions about plans or volume pricing? Talk to us →

Developer API

Integrate personality into your product

A RESTful API with OpenAPI docs, typed responses, and quota-tracked keys. One call to score a person.

Up and running in minutes

Grab an API key, POST any text about a person, and get back structured scores across every inventory. No models to host, no psychometrics to implement — we handle the science, you ship the feature.

✓ OpenAPI docs & typed responses
✓ Quota-tracked, revocable keys
✓ Score from text, questionnaires or LinkedIn

Read the API docs

Example request & response

curl -X POST https://v6.sentino.org/persons/abc123/profile \
  -H "Authorization: Bearer sk_live_..." \
  -H "Content-Type: application/json" \
  -d '{"inventories": ["big5", "neo"]}'

# Response
{
  "person_id": "abc123",
  "inventories": {
    "big5": {
      "openness": {
        "score": 0.82,
        "quantile": 0.91,
        "confidence": 0.74,
        "confidence_text": "high"
      }
    }
  }
}

Ready to explore personality?

Your profile is free. No credit card required.

Create your profile

Understand personalitythe scientific way