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Examples · 302 cases
AI examples: real cases with sources
AI examples from real life: the Caderno de IA lists 302 cases of people and companies using artificial intelligence, 125 from Brazil, across 39 professions and 20 sectors. Each example says who used it, with which tool and what was reported, with a link to the public source.
AI for developers
01Livelo engineers report up to 50% higher productivity with AI agents
The Brazilian loyalty program brought Kiro and Amazon Q Developer to its team of about 240 engineers, with metrics and governance from day one.
02When your AI limit runs out in the middle of the day
A dev running four subagents across four repositories ran out of tokens and reflected on their dependence on AI.
03Running an offline AI assistant on your iPhone
A dev built Anvil, which runs models on the device for use on a plane, on the subway or without roaming.
AI for teachers
01A history teacher builds a game about Rome for their students
A middle school teacher learned Godot and used Claude to unblock the code for an RPG set in Gaul in 51 BC.
02Automating the grading of practice exams for an entire school
The IT coordinator of a school in Duque de Caxias built a workflow that grades practice exams from several teachers and returns indicators by class.
03Teacher Shows Students How They'd Look in Their Dream Careers
A state-school teacher in Campinas used ChatGPT to generate images of her students as adults in the careers they dream of.
AI for physicians
01Build a study platform for medical residency exams
A radiologist who studies AI built RadVenture, with questions, practice exams and AI tools.
02Hospital transcribes consultations with AI and the doctor validates the medical record
Einstein used an AI that listens to the consultation and suggests a structured entry for the medical record.
03Doctor with Parkinson's Uses AI So He No Longer Has to Type Patient Records
A pulmonologist diagnosed with Parkinson's at age 40 uses an assistant that takes notes and summarizes appointments.
AI for lawyers
01Habeas corpus written only with AI and a letter from the STJ to the OAB
An STJ justice sent a letter to the OAB over a habeas corpus petition with AI-fabricated citations and no original argument.
02Lawyer Fined by the TSE for Case Law Invented by AI
A TSE justice fined a lawyer and notified the OAB after nonexistent citations created with AI.
03When the "Rapporteur" Cited by AI Was a Bar Owner
A judge in Concórdia (SC) discovered that the rapporteur of a ruling cited in a filing was actually a bar owner.
AI for accountants
0160-year-old accounting firm uses AI to review financial statements and a bot for FGTS
Gomide Contabilidade (Brasília) is testing AI that cross-checks the trial balance, income statement and balance sheet; an RPA bot cut FGTS control from 10 to 15 days to about 36 minutes.
02AI agent checks invoices and frees up 660 hours a month at an accounting firm
Syhus, an accounting firm for startups, built an agent that compares thousands of invoices across two systems; a person reviews and approves the final spreadsheet.
03Accounting firm in Ji-Paraná posts 30,000 journal entries with AI and saves 298 hours
An academic study shows a firm in Rondônia, Brazil, using AI to read bank statements and reports and turn them into journal entries.
AI for journalists
01Journalists from Folha, Aos Fatos and Núcleo discuss how they use AI
Knight Center roundtable: newsrooms use AI to translate, create scripts and fact-check.
02Newsroom sets out what journalists can and cannot do with AI
Grupo Estado published rules: AI for transcription, translation and data, always with human review.
03A journalist lets Claude triage his Gmail every morning
A PCWorld writer set up a routine in Claude Cowork that sorts out what matters, archives the rest, files receipts and prepares reply drafts.
AI for marketing professionals
01Banco BV uses AI agents in debt collection and marketing
The Brazilian bank put AI on 85% of its early-stage collections and now uses an agent to organize the requests that reach its marketing team.
02Testing whether AIs cite your blog
An author asked five AI assistants about topics he had already published on to see whether his content showed up.
03Teaching AI to make your site findable by people and by other AIs
A developer created a skill for Claude Code to review the SEO and GEO of websites.
AI for students
01Using AI as a tutor without letting it solve the exercise for you
A Java student shared a prompt that makes AI guide, rather than hand over, Beecrowd solutions.
02Building a "thinking system" with Obsidian and Claude
A developer started recording what he learns in Obsidian and using Claude to connect notes.
03Build an app to study for the driver's license theory exam (CNH)
A developer used AI agents to build a study app for the Detran driving test.
AI by profession
39
Frequently asked questions
What are examples of AI in everyday life?
The Caderno has 22 cases of consumers using AI in everyday life. The newest are:
- Claude doubled the speed of a home Wi-Fi network
- A table at a hard-to-book restaurant without refreshing the website
- Forgotten money at old addresses in two countries
Across the whole directory, the biggest categories by number of cases are productivity (77 cases), business and sales (33 cases), and health (30 cases).
What are 10 examples of artificial intelligence?
Ten real examples, one from each of the ten categories with the most cases, each with a public source:
- 60-year-old accounting firm uses AI to review financial statements and a bot for FGTS
- Giving an agent a server and the mission of building a business
- Building a personal routine app for ADHD with Codex
- UFSM research uses AI to correct satellite soil moisture readings and cuts the error by 73%
- Letting AI actually edit videos in Kdenlive
- Building a balance sheet and debt payoff plan by chatting with an AI
- Habeas corpus written only with AI and a letter from the STJ to the OAB
- Livelo engineers report up to 50% higher productivity with AI agents
- Banco BV uses AI agents in debt collection and marketing
- Generating all of a game's pixel art with code written together with AI
What are examples of artificial intelligence in the job market?
The cases cover 39 professions with their own page. By number of cases, the most common are developers (47 cases), consumers (22 cases), entrepreneurs (18 cases), journalists (18 cases), and parents (18 cases). There are also 60 Brazilian companies with documented cases. Each profession page below lists its cases with sources.
What types of generative AI are there? Examples
The Caderno organizes cases by tool and by category, not by technical type of AI. By number of cases, the most cited tools are ChatGPT (51 cases), Claude Code (33 cases), Claude (29 cases), Claude Cowork (16 cases), Gemini (13 cases), and Codex (12 cases). This is a count of cases, not a ranking of quality. 32 cases are tagged only as generative AI, with no named tool, and 12 cases involve AI agents.
Do the examples have a source?
Yes. AI agents update the site daily, and every case has a public source that is checked before it is published. The link to the source is on each case page.