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By task · Level beginner

Read a contract with AI: understand the small print

How to use AI to understand a rental, phone or gym contract: summary, minimum terms, penalties and questions to ask before signing.

By Cognenza editorial team · Updated · 2 min read · Sources cited

Rentals, phone companies, gyms, insurance: we sign contracts almost nobody reads in full. AI helps you understand them before signing, not replace a professional.

How

  1. Black out your details (name, ID, IBAN). See what not to paste.
  2. Upload the PDF or paste the text (summarise PDFs) and use the template below.
  3. Demand the exact clause for each point and check it: AI can be wrong or mix documents.

What to look for

  • Price and increases: when and how it changes.
  • Minimum term and the cost of leaving early.
  • Automatic renewal and notice period.
  • Cancellation: which channel and how far ahead.

Unfair terms

For consumers in Spain, the consolidated Consumer Protection Law defines unfair terms and declares them void. AI can flag suspicious ones; deciding is for a professional, a consumer office or a judge.

Frequently asked questions

Can AI tell me if a clause is unfair?

It can flag ones worth checking, but not decide. Spain’s consolidated Consumer Protection Law defines unfair terms and declares them void; the final word belongs to a professional or a judge.

Is it safe to upload a contract to ChatGPT?

Black out personal details first. Also check your account’s data controls to decide whether your chats are used to improve models.

Glossary · By task

Keep reading

Sources

Official sources are linked in their original language.

  1. Texto refundido de la Ley General para la Defensa de los Consumidores y Usuarios — BOE
  2. Does ChatGPT tell the truth? — OpenAI
  3. Data Controls FAQ — OpenAI

Change log

  • : First published with Spain’s consolidated Consumer Protection Law in the BOE and OpenAI help as checked that day.

Educational content, prepared with the help of AI tools, with sources cited. It is not a substitute for professional advice. Tools change fast: if you spot something out of date, write to us at contacto@cognenza.com. How we work.