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 6 validated psychometric instruments. Each measures a different layer of your cognition: personality (Big Five, 30 facets), attachment style, sense of humor, personal values, time perspective, and cognitive style.
The result is a portable JSON 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.
From signup to the AI understanding you. Everything inside afini.ai.
Choose your plan
Browse plans, compare and pick the one that fits.
Pay and create account
Stripe checkout. Then choose how to sign in.
Complete the assessments
6 tests at your pace. Your profile compiles automatically.
Chat with AI
Claude truly understands you. Every response is tailored.
No signup required upfront. Choose and pay first, create your account after.
No prior signup. First you decide, then you pay, then you identify.
Three all-inclusive plans: 6 psychometric instruments, automatic profile compilation, and AI conversation. The difference is the model (Sonnet or Opus) and monthly tokens.
Browse plans in the pricing section, choose, and go straight to Stripe checkout. No forms, no prior signup.
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.
6 validated instruments: personality (Big Five IPIP-NEO, 300 items), attachment (ECR-R), humor (HSQ), values (AVI-25), time perspective (ZTPI), and cognitive style (guided conversation). In any order.
You don't have to do all 6 at once — you can start chatting with AI from the first assessment. Your profile compiles automatically as you complete each instrument.
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.
Prompt caching: your profile (3,000-4,000 tokens) is cached. You pay once, it's read 9 out of 10 times at one-tenth the cost. 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.
The difference between a generic AI and one that gets you.
"Explain inflation to me"
Claude
Inflation is the sustained increase in the general level of prices for goods and services in an economy. It is measured using indices like the CPI and reduces consumer purchasing power over time.
Correct but impersonal. Wikipedia with buttons.
"Explain inflation to me"
Claude + Afini
You hate textbook answers. Inflation is when money becomes a harder game — prices climb, your paycheck stays. For someone who actually thinks about *why* systems work, the good stuff is the causation: money printers going brr? Supply chains exploding? Expectations eating their own tails?
Knows you. Adapts tone, depth, and approach to you.
Each layer adds a dimension. Your profile works from the first one.
Each instrument measures something different. Together, they build a portrait no single test can offer.
IPIP-NEO (60/120/300 items)
The Big Five personality dimensions and 30 facets. The foundation of your entire profile.
Public domain · 1.46M respondents
ECR-R (Fraley, 2000)
Anxiety and avoidance in relationships. How you bond with others.
Open academic access
HSQ (Martin, 2003)
4 humor styles: affiliative, self-enhancing, aggressive, self-defeating.
Free to use with citation
Based on Schwartz (custom instrument)
10 universal values. What you prioritize when you have to choose.
Bilbao AI S.L. property
ZTPI (Zimbardo & Boyd, 1999)
5 time perspectives. How you experience past, present, and future.
Research use free
Custom conversational module
Need for cognition, tolerance for ambiguity, aesthetic preferences. Extracted through guided conversation with AI.
Pick the plan that fits you. All include 6 psychometric tests and AI conversation.
VAT included
To start with your cognitive profile.
VAT included
For daily AI users.
VAT included
For professionals and teams.
Your complete profile as documented JSON. Inject it into Claude, GPT, Gemini, or any LLM. Yours forever. Available with Professional plan after completing all 6 assessments.
The PCP is the final result of the process: requires active Professional plan and all 6 layers completed. Static JSON degrades: recalibration available.
Every instrument we use has published empirical validation. Total transparency on methods, licenses, and limitations.
Sample cognitive profile — 6 quantified dimensions
International Personality Item Pool. Open implementation of NEO PI-R (Costa & McCrae). 5 domains, 30 facets, empirical percentiles across 1.46M respondents.
Public domain
Experiences in Close Relationships-Revised (Fraley, Waller & Brennan, 2000). Measures anxiety and avoidance in attachment relationships.
Open academic access
Humor Styles Questionnaire (Martin, Puhlik-Doris, Larsen, Gray & Weir, 2003). 4 scales: affiliative, self-enhancing, aggressive, self-defeating.
Free use with citation
Zimbardo Time Perspective Inventory (Zimbardo & Boyd, 1999). 5 factors: negative past, positive past, hedonistic present, fatalistic present, future.
Research use free
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
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.
It's a quantified map of how you think, what you value, how you relate to others, and what motivates you. It combines 6 validated psychometric instruments into a structured JSON that any AI can read to tailor responses to you.
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).
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.
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.
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. Three ways: direct link, email or AFINI-XXXX-XXXX code. Check the import section below.
The integrated conversation uses Claude (Sonnet or Opus depending on your plan). But the portable JSON works with any LLM that accepts system prompts: GPT-4, Gemini, Llama, Mistral... You paste it as a system instruction and it works.
It's your complete cognitive profile in documented JSON format. You download it, read it, inject it into any AI. Yours forever. The price reflects that it's the end product of the system: your 6 layers quantified in a format that transforms any LLM.
Yes. Your personality is relatively stable, but values, time perspective, and cognitive style evolve. That's why we offer periodic recalibration (included in plans) or on-demand (€79-99 for portable JSON).
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.
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.
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.
Direct link
From your results page in test.afini.ai
Manual code
Enter your AFINI-XXXX-XXXX code