Esencial
Essential · Sonnet 4.6
Anthropic's balanced model. Fast, capable, with enough nuance for matter-of-fact conversations. With your profile on top it outperforms Opus without one.
What is a cognitive profile?
It's a quantified map of how you think, what you value, how you relate to others, and what motivates you. Not a label. Not a type. A continuous profile with real scores across 6 independent dimensions.
Afini builds your profile by combining 5 validated psychometric tests and 16 AI-guided conversations. Each layer measures something different: personality (Big Five, 30 facets), attachment, humor, values, time perspective — and the conversations explore your cognitive style, decisions, conflicts, and real-life context.
The result is your profile in a portable format that any AI can read. When Claude, GPT, or Gemini read your profile, the conversation changes radically: they adapt tone, depth, examples, and style to your real thinking pattern.
This isn't MBTI or 16Personalities
We don't put you in a box with 4 letters. We use continuous instruments with scientific validation: IPIP-NEO (public domain, 1.46M respondents), ECR-R (Fraley, 2000), HSQ (Martin, 2003), ZTPI (Zimbardo & Boyd, 1999). Empirical percentiles, not bell curves.
Your profile in 5 steps
From signup to the AI understanding you. Everything inside afini.ai.
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Choose your plan
Browse plans, compare and pick the one that fits.
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Pay and create account
Stripe checkout. Then choose how to sign in.
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Complete the assessments
5 tests + 16 conversations. Your profile compiles automatically.
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Chat with AI
Claude truly understands you. Every response is tailored.
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Your profile evolves
Every test and conversation recalibrates your cognitive map. Tomorrow's AI knows you better.
How it works
No prior signup. First you decide, then you pay, then you identify.
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Choose your plan
Three all-inclusive plans: 5 psychometric tests, 16 AI-guided conversations, automatic profile compilation, and personalized AI. The difference is the AI model (Sonnet or Opus) and usage volume.
Browse plans in the pricing section, choose, and go straight to Stripe checkout. No forms, no prior signup.
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Pay and create your account
Stripe processes payment. On the confirmation page you create your account: magic link, Google or Apple. 30 seconds and you're in.
Identity comes AFTER the purchase decision. First you know what you're buying, then you decide how to sign in.
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Complete the assessments at your pace
5 validated tests: personality (Big Five IPIP-NEO), attachment (ECR-R), humor (HSQ), values (AVI-25), time perspective (ZTPI). Plus 11 guided conversations exploring cognitive style, decisions, conflicts, and life context. In any order.
You don't have to do them all at once — you can start chatting with AI from the first test. Your profile compiles automatically as you complete each test or conversation.
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Chat with AI that understands you
Your profile is injected as context in every conversation. Claude (Sonnet or Opus per your plan) responds knowing how you think, what you value, how you relate, and what humor works for you.
Your profile is automatically injected into every conversation. No copying or setup needed: the AI reads it before responding. The result: an AI that knows you without explaining yourself every time.
Your profile works from the first assessment you complete. It improves with each additional layer.
Four paths to your personalized AI
Monthly subscription (Essential, Premium or Professional), or buy the AfiniTwin standalone for €249 to use with any AI. Three subscription paths plus one standalone.
How well your AI knows you
Same question. Three levels of depth. The difference isn't the algorithm — it's how much it knows about you.
0 cross-layer axes active
"Why do I find it hard to delegate at work?"
With your Big Five
Your Agreeableness is low (T=33) and your Assertiveness is high (T=69). This suggests you prefer to stay in control and that handing off responsibilities may feel uncomfortable. Delegating means trusting others to meet your standards.
Correct. But shallow. Like reading your horoscope with data.
Your cognitive profile, layer by layer
5 validated psychometric tests + 16 AI-guided conversations + 8 declared layers = a profile that evolves with you.
Combines quantified psychometric instruments with conversational pattern extraction. Each layer adds dimension, each test recompiles your profile.
5 validated psychometric instruments
Personality
IPIP-NEO (60/120/300 items)
The Big Five personality dimensions and 30 facets. The foundation of your entire profile.
60-300 questionsAvailable
Public domain · 1.46M respondents
Attachment
ECR-R (Fraley, 2000)
Anxiety and avoidance in relationships. How you bond with others.
36 questionsAvailable
Open academic access
Humor
HSQ (Martin, 2003)
4 humor styles: affiliative, self-enhancing, aggressive, self-defeating.
32 questionsAvailable
Free to use with citation
Values
Based on Schwartz (custom instrument)
10 universal values. What you prioritize when you have to choose.
25 questionsAvailable
Bilbao AI S.L. property
Time perspective
ZTPI (Zimbardo & Boyd, 1999)
5 time perspectives. How you experience past, present, and future.
56 questionsAvailable
Research use free
16 AI-guided conversations
Psychometric conversations
Measure cognitive constructs through adaptive AI-guided interviews with no fixed questionnaire.
Cognitive and aesthetic style
How you think, decide, and perceive beauty
~15 min / session
Decision style
How you choose when things matter
~15 min / session
Conflict management
How you handle friction with others
~15 min / session
Curiosity and exploration
What drives you to discover new things
~15 min / session
Declarative conversations
What the AI must respect as a hard limit: your canon, your red lines, your mental frame, your rhythms.
Your aesthetic canon
Authors, music, film, brands, perfumes, food, places. What defines your taste.
10–18 min
Your negative space
Taboos, pet peeves, disliked phrases, antimodels. What the AI must NEVER do with you.
8–14 min
How you want to be treated
Length, language by domain, contradiction tolerance, citation style, code language.
5–8 min
Your mental frame
Operational idolatries, schools of thought you've passed through, stances on chance, freedom and happiness.
15–25 min
Your operational equipment
Languages with CEFR level, jargons you master, jargons you hate, competence and acknowledged ignorance areas.
8–14 min
Your rhythms and anchors
Chronotype, daytime thinking window, places that shaped you or move you.
5–8 min
Life-domain conversations
Explore how your traits manifest in real life. Extract facts + contextual scores.
Professional life
Your career, ambitions, and work frustrations
~15 min / session
Family
Where you come from and your family bonds
~15 min / session
Romantic relationships
Your love life and how you bond in partnership
~15 min / session
Leisure and passions
What you do when no one makes you do anything
~15 min / session
Health and body
Your relationship with exercise, sleep, and wellness
~12 min / session
Environment and space
Where you live and how your space affects you
~12 min / session
Recalibration
Verify and adjust your profile every 90 days
Each conversation is an open flow: come back whenever you want and your profile recalibrates with the new data.
Cross-layer connections
Each layer tells you something on its own. The combinations between layers tell you what no single test ever can.
25 axes · 11 conversation flows
Tap a node to explore its connections
Your profile is 8 layers, not a label
Each layer measures something different — from what you are to what you do NOT tolerate. None replaces the others.
Declarative layers are set by you explicitly — the AI treats them as a hard limit. Build them through conversation with the model or short forms.
Aesthetic canon
EssentialYour cultural references: literature, music, film, art, philosophy, gastronomy, lifestyle.
Explore layer →
Negative space
PremiumWhat you NEVER want in a reply: taboos, pet peeves, disliked phrases, antimodels.
Explore layer →
How you want to be treated
EssentialLength, language by domain, contradiction tolerance, citation style, code language.
Explore layer →
Mental frame
ProfessionalOperational idolatries, schools of thought, stances on chance, freedom and happiness.
Explore layer →
Operational equipment
ProfessionalLanguages with CEFR level, mastered jargons, competence areas and acknowledged ignorance.
Explore layer →
Rhythms and geography
PremiumChronotype, daytime thinking window, places that shaped you or move you.
Explore layer →
Life context
EssentialStable data (marital status, city, children by age band, profession) the AI needs to locate you without asking each time.
Explore layer →
Intellectual trajectory
ProfessionalYour story of how you came to have the mind you have today, written by you.
Explore layer →
Layers grow at your pace — the plan you choose defines which ones are available from day one.
The cascade effect
Each test rewrites the previous ones
When you complete a new instrument, your previous reports are automatically recontextualized with the new information. It's not an addition: it's a rewrite.
1
You complete the Humor test
Your profile registers the 4 humor styles (HSQ)
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Your profile recompiles instantly
New active axes: humor × personality, humor × attachment
Active axes: 5 → 8
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Next day, your narratives are rewritten
"Your low Agreeableness combined with moderate aggressive humor indicates that irony is your genuine communication style, not a social mask."
This sentence didn't exist before taking the Humor test
With 1 layer, your profile describes you. With 6 layers, your profile understands you.
How your profile evolves
It's not a test you take and forget. It's a living system that understands you better the more you use it.
We measure you — global traits
The 5 psychometric tests quantify who you are in general: personality, attachment, humor, values and time orientation. 153 questions with scientific validation from 1.46 million participants. Not opinions: empirical scores that position each trait of yours relative to the actual population.
- 51 quantified dimensions: 30 personality facets + 21 from attachment, humor, values and time
- Empirical percentiles from 1.46 million participants
- Each test activates new cross-layer axes: your humor reinterprets your personality, your values nuance your attachment — 25 axes total
We understand you in context — your real life
The 16 AI-guided conversations aren't disguised tests: they're open dialogue flows where the AI asks questions, adapts to what you say, and extracts patterns a questionnaire can't capture. How does someone with your exact mix of assertiveness and avoidance negotiate a raise? What kind of partner does someone seek with your attachment profile and values? Conversations turn abstract numbers into real behavior.
- Tests measure who you are in the abstract. Conversations reveal how you live those traits when seeking a partner, negotiating a raise, or managing family conflict.
- Each conversation is an open flow: the AI adapts its questions to your responses and extracts contextual scores without forms.
- 4 psychometric conversations (cognitive style, decisions, conflicts, curiosity) + 6 vital conversations (work, family, partner, hobbies, health, environment) + periodic recalibration
Your profile doesn't end — it evolves
A conventional test is a fixed snapshot. Your Afini profile is an organism: when you change jobs, break up, discover a new passion, or simply mature, you revisit the corresponding conversation and your profile rewrites itself. It's not that you "add data": the narratives across all connected layers regenerate to reflect who you are now.
- Automatic drift detection: the system detects when your responses diverge from your earlier profile and suggests recalibration
- 25 cross-layer axes recalculate with each revisit — your humor reinterprets your personality, your values nuance your attachment
- Your subscription keeps your profile alive and evolving — the portable format freezes a snapshot to take outside Afini
Three ways to have an AI that knows you
Pick one based on whether you use your profile to explore, talk or work.
All plans include the 5 psychometric tests, automatic profile compilation, and access to exploration conversations.
Essential
Discover your profile
€14.99/mo
VAT included
Sonnet 4.6 with your cognitive profile. 400 turns/month and ten Opus 4.7 turns when you need depth.
Start EssentialPremium
Talk with your profile
€29.99/mo
VAT included
Opus 4.7 carrying your profile. 200 turns/month, seven modules, 90-day retention.
Start PremiumProfessional
Work with your profile
€49.99/mo
VAT included
Opus 4.7 with adaptive thinking, all eleven modules, up to three profiles, permanent memory and a AfiniTwin every quarter.
Start ProfessionalJust need the AfiniTwin?
If all you want is to export your cognitive profile as JSON to use in any AI, no subscription needed. Buy it standalone for €249, yours forever.
Your profile isn't a product you buy. It's a process you build.
2
Month 1
Personality + Attachment
3 active axes23 min invested
Big Five and ECR-R complete. 3 cross-layer axes active. Your profile already works.
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Month 2-3
+ Humor + Values
8 active axes45 min invested
HSQ and AVI-25. 8 active axes. Narratives recontextualized ×2.
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Month 4-5
Complete profile
15 active axes65 min invested
ZTPI + AI conversation. 15 axes. Every narrative reflects all others.
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Month 6+
Mature profile
15 active axes65+ min invested
AfiniTwin unlocked. Recalibration available. The profile stays alive.
Most users complete all 6 layers in 4-5 months. Month by month, each test is worth more than the last.
The engine that understands you
Three Anthropic models, one per plan. No creative marketing: the right one for what you'll do with it.
Premium
Premium · Opus 4.7
Anthropic's most capable model in April 2026. Deep reasoning, better ambiguity handling, long conversations with sustained internal coherence.
Profesional
Professional · Opus 4.7 + adaptive thinking
Opus 4.7 with the ability to reason internally before answering. The AI thinks between 4,000 and 16,000 tokens silently when the problem requires it.
Science, not marketing
Every instrument we use has published empirical validation. Total transparency on methods, licenses, and limitations.
Sample cognitive profile — 6 quantified dimensions
OpennessEmpathyResilienceNeuroticismExtraversionAvoidanceAffiliative humorFutureAgreeablenessCreativityAnxietySelf-disciplinePresentConscientiousnessBenevolenceSelf-efficacy
IPIP-NEO — Big Five
Learn more →International Personality Item Pool. Open implementation of NEO PI-R (Costa & McCrae). 5 domains, 30 facets, empirical percentiles across 1.46M respondents.
Public domain
ECR-R — Adult attachment
Learn more →Experiences in Close Relationships-Revised (Fraley, Waller & Brennan, 2000). Measures anxiety and avoidance in attachment relationships.
Open academic access
HSQ — Humor styles
Learn more →Humor Styles Questionnaire (Martin, Puhlik-Doris, Larsen, Gray & Weir, 2003). 4 scales: affiliative, self-enhancing, aggressive, self-defeating.
Free use with citation
ZTPI — Time perspective
Learn more →Zimbardo Time Perspective Inventory (Zimbardo & Boyd, 1999). 5 factors: negative past, positive past, hedonistic present, fatalistic present, future.
Research use free
AVI-25 — Values
Learn more →Custom instrument based on Schwartz's theory of values. 25 items, 10 universal values. Designed and validated by Bilbao AI.
Bilbao AI S.L. property
Empirical percentiles
Learn more →We don't use normal distribution (z-scores). We calculate percentiles directly from the observed distribution of 1.46M respondents. More accurate for real-world distributions.
Explore Afini.ai any way you like
Three different entry points into the same product: by how you compare it, by how you name it, or by whom you resemble.
Glossary
The concepts that shape your cognitive profile, in plain English.
- Neuroticism (N)
- Extraversion (E)
- Openness to experience (O)
- Agreeableness (A)
- Conscientiousness (C)
- Sycophancy (AI sycophancy)
Use cases
People already thinking with Afini. No frills.
- Professionals with a full head
- Couples who want to talk better
- Parents who prefer understanding to lecturing
- Therapists who want an instrument, not a replacement
- Coaches who prefer data to self-help
Frequently asked questions
What exactly is a cognitive profile?
It's a quantified map of how you think, what you value, how you relate to others, and what motivates you. It combines 5 validated psychometric tests and 16 AI-guided conversations into a structured format that any AI can read to tailor responses to you.
How is this different from 16Personalities or MBTI?
MBTI puts you in 1 of 16 boxes with 4 letters. Afini measures continuous dimensions: you're not "introverted" or "extroverted", you have a specific score on each facet. We use IPIP-NEO (public domain, 1.46M respondents) instead of MBTI (proprietary, lacking robust validation).
How long does it take to complete everything?
Big Five (first step) takes 10-40 minutes depending on which version you choose (60, 120, or 300 questions). The 4 additional tests add about 45 minutes total. You can do it all at once or spread it over days.
Are my data safe?
Your data is stored encrypted on European servers (Railway EU West). We don't sell data to third parties. Invoices are simplified without personal data. You can request complete deletion of your data at any time.
What if I already took the Big Five on test.afini.ai?
If you completed the 300-question version, you can import your profile. The Big Five becomes the first layer of your cognitive profile in afini.ai. Two ways: direct link or AFINI-XXXX-XXXX code. Check the import section below.
Does it work with LLMs other than Claude?
The integrated conversation uses Claude (Sonnet or Opus depending on your plan). But the portable profile works with any LLM that accepts system prompts: GPT-4, Gemini, Llama, Mistral... You download the prompt, paste it as a system instruction and it works.
What is the portable profile and what's it for?
The portable profile is a downloadable document containing all your psychometric data plus an interpretation protocol and a ready-to-use system prompt. Paste it into Claude, GPT, or any LLM and it understands you instantly. It's for those who want full autonomy: to use it in their own environment, in their IDE, in their company, without depending on Afini. The difference from the subscription: the portable is a frozen snapshot — your data works forever, but narratives don't update. The subscription keeps your profile alive.
Does the profile change over time?
Yes, in a way no other test does: every time you complete a new instrument, your profile recompiles instantly. Cross-layer axes recalculate — does your humor now interact with your personality differently? — and the next day your narratives are rewritten to reflect the new combination. It's not an addition: it's a rewrite of all affected reports.
Can I use Afini without a subscription?
The full cognitive profile (6 layers + AI) requires a subscription on afini.ai. If you only want the Big Five as a standalone personality test, there's test.afini.ai: from 5€, direct purchase, no signup.
Are the instruments scientifically valid?
Each instrument has peer-reviewed publications. IPIP-NEO (Johnson, 2014), ECR-R (Fraley et al., 2000), HSQ (Martin et al., 2003), ZTPI (Zimbardo & Boyd, 1999). AVI-25 is Bilbao AI's custom instrument based on Schwartz theory. We don't use proprietary tests without validation.
Why does each test change previous reports?
Because the instruments aren't independent. Your humor influences how your personality is interpreted. Your attachment style nuances your values. Your time perspective contextualizes your assertiveness. The profile defines 25 cross-layer combination axes: when you add a new layer, previously inactive axes light up, and narratives for all connected layers regenerate. It's like adding a puzzle piece and watching the whole picture shift.
What are guided conversations and how do they differ from tests?
Tests are questionnaires with fixed responses: 153 Likert-type questions measuring validated psychometric constructs. Guided conversations are adaptive AI interviews: the AI asks you open-ended questions, adapts to your responses, and extracts scores without you filling in forms. Tests measure global traits (who you are in general). Conversations measure how those traits manifest in real contexts: your work, your partner, your conflicts.
What does personalized AI do that ChatGPT doesn't?
ChatGPT knows nothing about you. Afini injects your complete cognitive profile — traits, attachment, humor, values, time orientation, life context — as a system prompt in every conversation. Claude doesn't respond to you as a generic user: it adapts tone, depth, examples and recommendations to your actual way of thinking and feeling.
Can I complete the assessments in any order?
Yes. Your profile compiles automatically every time you complete a test or conversation. Starting with the Big Five is recommended (it's the foundation), but you can jump to any assessment that interests you. Each new layer you add activates cross-layer axes and rewrites the narratives of all connected layers.
Already took the Big Five in test.afini.ai?
If you completed the 300-question test in test.afini.ai, you can import your results directly. Your Big Five becomes the first layer of your complete cognitive profile.
Import requires the 300-item test (full version). 60 or 120-item tests are not importable.
No code? You can also import directly from your results page on test.afini.ai. There you will find the option to continue with Afini.ai.