Edition of October 26, 2026Use cases · with prompt · with sourcePTEN

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Case archive · 8

Illustrative photo: Health sector211
Business and Sales🇧🇷 Brazil

Let an AI send prospecting emails on your behalf

The founder of BloodLink authorized Claude to write and send emails to blood centers and hospitals.

EntrepreneurClaudeResend
TabnewsSee prompt →
Illustrative photo: Health sector212
Marketing and Content🇧🇷 Brazil

Replace a paid blog tool with your own AI workflow

A professional canceled an automated article service and built a pipeline with Claude for the blog of a clinic management system.

Marketing ProfessionalClaude CoworkAPI do Claude
TabnewsSee prompt →
Illustrative photo: SMB sector213
Marketing and Content🇧🇷 Brazil

Discover that ChatGPT was recommending your product

The creator of ClickPede gained subscribers without any promotion and found out they were coming from ChatGPT recommendations.

EntrepreneurChatGPT
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Illustrative photo: Services/Technology sector214
Productivity🇧🇷 Brazil

Journalists from Folha, Aos Fatos and Núcleo discuss how they use AI

Knight Center roundtable: newsrooms use AI to translate, create scripts and fact-check.

JournalistIA generativa
NewsSee prompt →
Illustrative photo: Health sector215
Customer Service🇧🇷 Brazil

Psychologist lets AI handle only scheduling on WhatsApp

A psychologist created an assistant that handles first-contact screening and scheduling, but never clinical care.

PsychologistAssistente de IA no WhatsApp
LinkedInSee prompt →
Illustrative photo: Agribusiness sector216
Productivity🇧🇷 Brazil

Ranch hand logs farm data by voice message on WhatsApp

A specialist shows AI converting field voice messages into inventory entries and answering the owner.

FarmerCattle RancherIA no WhatsApp
NewsSee prompt →
Illustrative photo: Health sector217
Health🇧🇷 Brazil

Nutritionists Assess Diets Created by AI

Experts explain where a chatbot's meal plan helps and where it becomes a risk.

NutritionistPatientChatGPTGemini
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Illustrative photo: Food sector218
Productivity🇬🇧 United Kingdom

Building a Timing App for Cooking Several Recipes at Once

Simon Willison asked Claude for an app to coordinate timings when preparing two recipes at the same time.

Home CookClaude
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Illustrative photo: Health sector219
Health🇧🇷 Brazil

Psychologists Using AI to Transcribe and Summarize Sessions

A BBC Brasil report spoke with psychologists who already use AI in their practice.

PsychologistIA generativa
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Illustrative photo: Legal sector220
Rights and Bureaucracy🇧🇷 Brazil

Lawyer 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.

LawyerIA generativa
NewsSee prompt →
Illustrative photo: Health sector221
Rights and Bureaucracy🇺🇸 United States

Auditing a Hospital Bill Item by Item with AI

A family used Claude to interpret billing codes and dispute a hospital bill.

Patient/Family MemberClaude
NewsSee prompt →
Illustrative photo: Health sector222
Health🇧🇷 Brazil

Why Asking AI for a Meal Plan Instead of a Nutritionist Can Go Wrong

A report recalls the case of an American who was poisoned after swapping salt for bromide.

NutritionistPatientChatGPT
NewsSee prompt →
Illustrative photo: Services/Technology sector223
Career🇧🇷 Brazil

The Downside: A Designer Goes from 150 to 400 Pieces a Month

Estadão spoke with designers about how AI has changed deadlines, prices and workload.

DesignerIllustratorIA generativa
NewsSee prompt →
Illustrative photo: Legal sector224
Rights and Bureaucracy🇧🇷 Brazil

When 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.

LawyerParty to a LawsuitIA generativa
NewsSee prompt →
Illustrative photo: Construction sector225
Games and Creativity🇧🇷 Brazil

Architects Describe How AI Entered the Office

Speaking to CASACOR, architects such as Guto Requena talk about floor plans, visualization and even floor layout patterns.

ArchitectIA generativa
NewsSee prompt →
Illustrative photo: HR sector226
Career🇧🇷 Brazil

Recruiter Builds an Agent on Her Own to Screen Résumés

At Inspira, a recruiter without an ATS built an agent that ranks candidates by fit to the job, with a justification.

RecruiterHR ProfessionalIA generativa
LinkedInSee prompt →
Illustrative photo: Tourism sector227
Productivity🇵🇪 Peru

Tourists Follow an AI Itinerary to a Canyon That Doesn't Exist

The BBC gathers cases of travelers misled by AI itineraries, such as an invented "sacred canyon" in Peru.

TravelerChatGPT
NewsSee prompt →
Illustrative photo: Agribusiness sector228
Productivity🇧🇷 Brazil

Dairy Farms Log Their Routine on WhatsApp with AI

A startup from Minas Gerais brought dairy farm management to WhatsApp and accelerated adoption.

FarmerIdeagri Pro (Rúmina)
NewsSee prompt →
Illustrative photo: Agribusiness sector229
Productivity🇧🇷 Brazil

Farmer Gets Management Questions Answered by a WhatsApp Chatbot

Embrapa's RAImundo answers by voice message and analyzes photos of pests and animals.

FarmerRAImundoWhatsApp
NewsSee prompt →
Illustrative photo: Services/Technology sector230
Marketing and Content🇧🇷 Brazil

Designer Combines ChatGPT, Midjourney and Photoshop for Short-Deadline Campaigns

A designer describes the workflow: prompts in ChatGPT, images in Midjourney and retouching in Photoshop.

DesignerChatGPTMidjourney
LinkedInSee prompt →
Illustrative photo: Services/Technology sector231
Programming🇧🇷 Brazil

Switching from Cursor to Claude Code for Big Features

A Brazilian dev who works for clients abroad describes how their way of working with agents changed.

DeveloperClaude CodeCursor
BlogSee prompt →
Illustrative photo: Education sector232
Productivity🇨🇭 Switzerland

Mom Shares the Prompts She Uses to Organize the Family

Lilian Schmidt uses AI for the weekly menu, shopping list and the kids' morning routine.

ParentChatGPT
NewsSee prompt →
Illustrative photo: Services/Technology sector233
Productivity🇺🇸 United States

70-Year-Old Retiree Uses AI Every Day as an Assistant

A retired lawyer explains how he uses chatbots to get answers and learn new things in retirement.

RetireeChatGPT
NewsSee prompt →
Illustrative photo: Legal sector234
Rights and Bureaucracy🇧🇷 Brazil

Case Law Invented by AI and the Fine of Ten Minimum Wages

A lawyer from Juazeiro (BA) was fined over a filing with fake rulings generated by AI and blamed the document on an intern.

LawyerIA generativa
NewsSee prompt →
Illustrative photo: HR sector235
Career🇧🇷 Brazil

Pharmaceutical Company Uses AI for Screening and the First Interview

Libbs, with 3,800 employees, lets AI evaluate résumés and conduct voice interviews before recruiters.

HR ProfessionalJob SeekerIA de recrutamento
NewsSee prompt →
Illustrative photo: Services/Technology sector236
Productivity🇪🇸 Spain

At 97, She Taught Herself to Use AI

A Spanish woman uses AI to get answers about retirement, research authors and learn for pleasure.

RetireeAssistente de IA
NewsSee prompt →
Illustrative photo: Tourism sector237
Programming🇬🇧 United Kingdom

Redoing an Event Schedule Straight from Your Phone

Simon Willison scraped a conference website and built a better interface using only his phone.

DeveloperCodexClaude Artifacts
BlogSee prompt →
Illustrative photo: Construction sector238
Business and Sales🇧🇷 Brazil

Developer Launches a Building Conceived with the Help of AI

Vitacon used AI to design a 700-studio development in Vila Mariana, in São Paulo.

ArchitectBusiness OwnerIA generativa
NewsSee prompt →
Illustrative photo: Health sector239
Customer Service🇧🇷 Brazil

Psychologist's Google Calendar Booked by AI via WhatsApp

An n8n automation makes the AI understand the request on WhatsApp and create, reschedule or cancel sessions in the calendar.

PsychologistFreelancern8nGoogle Calendar
LinkedInSee prompt →
Illustrative photo: Education sector240
Education and Study🇧🇷 Brazil

Teacher 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.

TeacherChatGPT
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