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

Home / Tools / Gemini

Tool · 13 cases

Use cases: Gemini

Gemini, from Google, appears in these cases built into Gmail, Docs, Sheets and Android, as well as in its own app. It is useful if you already live in the Google ecosystem and want to summarize email, analyze spreadsheets or research with sources. The accounts show personal and professional uses, with wins and limits. Check what was done in each case and adapt the prompt to your day to day.

13 cases, 8 of them from Brazil, from newest to oldest. The most common topics are productivity, health, and education and study. People who show up most: developer, parent, and journalist. Each case links to the original source, shows a verification date and includes a prompt we wrote.

The cases

13 cases

Illustrative photo: Education sector01
Education and Study🇺🇸 United States

Homeschooling mom uses agents for lesson plans

Jesse Genet photographed textbooks and an agent turned the material into illustrated lesson plans.

ParentTeacherOpenClawGemini
Blog · via agentusecases.aiSee prompt →
Illustrative photo: Retail sector02
Productivity🇺🇸 United States

AI calls stores to find out if a toy is in stock

A journalist used the Google feature that has AI phone the store and ask.

JournalistParentGeminiGoogle
News · via agentusecases.aiSee prompt →
Illustrative photo: Services/Technology sector03
Productivity🇺🇸 United States

A week of managing my calendar by voice alone

A journalist turned on Workspace in Gemini and scheduled writing blocks and meetings by speaking.

JournalistGemini
News · via agentusecases.aiSee prompt →
Illustrative photo: Health sector04
Health🌐 International

Food diary by photo, voice or text on Telegram

An n8n template estimates the calories and protein of meals and tracks goals, without asking for weight or height.

NutritionistConsumern8nGemini
Blog · via agentusecases.aiSee prompt →
Illustrative photo: Tourism sector05
Productivity🌐 International

Comparing hotels in Lisbon across three different weeks

The browser opened Booking, Hotels.com, Expedia and Hyatt and kept a side-panel table of options up to US$220 a night.

TravelerGeminiChrome
Blog · via agentusecases.aiSee prompt →
Illustrative photo: Services/Technology sector06
Productivity🇧🇷 Brazil

When 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.

DeveloperClaude CodeGemini
TabnewsSee prompt →
Illustrative photo: Finance sector07
Personal Finance🇧🇷 Brazil

Building a balance sheet and debt payoff plan by chatting with an AI

A dev created a financial analyst with Gemini that reads a card statement or bank statement and proposes a payoff plan.

DeveloperPerson in DebtGemini
TabnewsSee prompt →
Illustrative photo: Services/Technology sector08
Customer Service🇧🇷 Brazil

Adding an assistant that answers only from your WordPress site's content

A dev published a plugin with RAG and Gemini in the official directory that prevents made-up answers.

DeveloperWebsite OwnerGeminiConvex
TabnewsSee prompt →
Illustrative photo: Services/Technology sector09
Programming🇧🇷 Brazil

Asking AI for a specific algorithm for a research project

A developer skeptical of LLMs used Gemini to generate random quantum circuits in the QCOP project.

DeveloperResearcherGemini
TabnewsSee prompt →
Illustrative photo: Services/Technology sector10
Marketing and Content🇧🇷 Brazil

Testing 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.

BloggerMarketing ProfessionalChatGPTClaude
TabnewsSee prompt →
Illustrative photo: Services/Technology sector11
Productivity🇧🇷 Brazil

Setting up complete Discord servers with an AI bot

An open source bot uses Gemini to plan categories, channels, roles and rules from a description.

DeveloperCommunity ModeratorGemini
TabnewsSee prompt →
Illustrative photo: Health sector12
Health🇧🇷 Brazil

Nutritionists Assess Diets Created by AI

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

NutritionistPatientChatGPTGemini
NewsSee prompt →
Illustrative photo: Health sector13
Health🇧🇷 Brazil

Trainers Evaluate Workouts Built by ChatGPT and Gemini

CNN asked AIs for weight-loss and beginner workouts and took the results to two professionals.

ConsumerFitness InstructorChatGPTGemini
NewsSee prompt →

Other topics

The newsletter · Caderno de IA

As 5 da semana

5 AI use cases with prompts, every Tuesday in your inbox. Free, with sources. The newsletter is written in Portuguese.

No spam. Unsubscribe anytime.

We use your email only to send the newsletter. See the privacy policy.