Learning Guides

From basic operations to advanced techniques for the web and mobile apps

1. STEP 1◇Beginner
   01When Gemini's Activity Setting Won't Change on a Work Account: Three Screens to Check First02Free Tier Shows Up, but You Get a 429 With `limit: 0` — What to Check in the First Hour of a New Gemini API Project03Before You Send a Gemini Draft, Run Double-Check and Fix Only the Orange Sentences04Three Lines Decide Who Gets Images in the Gemini App: 13, 18, and Your Administrator
2. STEP 2◆Intermediate
   05Two dictations on one Fn key — where I let Gemini type, and where I don't06Mastering Custom Instructions in Gemini Gems — What Actually Works After Two Months of Testing07"No Watermark Detected" Doesn't Mean It Isn't AI — The Asymmetry of SynthID08Putting Gemini image generation to work: from prompt design to thumbnails generated from videoPREMIUM
3. STEP 3◈Advanced
   09Selling Gemini Gems as Enterprise Prompt Products — Turning Custom Instructions into Monthly ContractsPREMIUM10Gemini 3.2 in Production: A Playbook for Model Selection, Cost Optimization, and Implementation Patterns11Gemini 3.2 Developer Monetization Blueprint — Building First-Mover Advantage with the New Model12Mastering Gemini Gems: Custom Instructions Playbook With 25 Production Recipes

From CLI tool setup to plugin development

1. STEP 1◇Beginner
   01Gemini quietly drops %1$s from translations, and no reviewer catches it02How Many Assistant-Dependent Lines Are Still in Your App?03A minimal pre-send guard for Gemini-drafted app review replies04Google ADK Quickstart — Build Your First AI Agent in 30 Minutes
2. STEP 2◆Intermediate
   05Stop Re-Reading Every Crash Report: Grep a Known-Bug Table First and Keep Only an Index in GEMINI.md06Three Veo 3.1 previews stop on Oct 22. I started with an inventory of every call site07Gemini CLI Kept Saying 'API key not valid' After I Gave It a New Key — It Was Reading an Old One From a Third Place08The Day I Unplugged an MCP Server for the First Time — How I Decide Which Tools Stay On
3. STEP 3◈Advanced
   09The approval rules I had written never matched once — auditing my Gemini CLI policiesPREMIUM10Why Shipped Clients Deserve a Refusal, Not a Silent Model SubstitutionPREMIUM11Your Shipped App Still Remembers the Retired ModelPREMIUM12The Day I Stopped Tracking gemini-flash-latest: Batch Design That Survives Silent Model SwapsPREMIUM

Guide to task management and file operation automation

1. STEP 1◇Beginner
   01The Size Column Said 'F6' and 'About A4' — I Let Gemini Read It, and Let a Table Do the MathPREMIUM02Writing my first Gemini cost estimate in two columns, one for now and one for JanuaryPREMIUM03Gemini 3.8 Flash Costs the Same Per Token and Can Still Raise Your Bill04generate_images Survives Until 2027. Your Image Generation Still Stops on August 17
2. STEP 2◆Intermediate
   05The Day /models Returns 200 but generateContent Returns 403 — Decide Your Triage Order Before It Happens06When Your config Raises "Extra inputs are not permitted", Check the Spelling of Every Key07When a Deprecation Has No Shutdown Date: Re-Picking an Image Model on Three Conditions08gemini-2.5-flash-image stops on October 2, and the replacement the table names retired in June
3. STEP 3◈Advanced
   09When Function Calls Turn Into Plain Text, Suspect the Property Names in Your Tool DeclarationsPREMIUM10Two Ways to Make a Longer Shot in Gemini Omni 1.1, and Two Different Ways They BreakPREMIUM11Your New Gemini API Key Never Took Effect, and Load Order Wasn't the ReasonPREMIUM12Never hand Gemini a raw ANR thread dumpPREMIUM

API integration quickstart for developers

1. STEP 1◇Beginner
   01Keeping Money and Health Questions Out of Your History: Gemini Temporary Chat and the Settings to Check
2. STEP 2◆Intermediate
   02Fine on Desktop, Blank on Safari: Four Things to Gather Before You Ask an AI to Diagnose It03I Stopped Asking Gemini 'Is This Right?' and Started Hiding My Answer InsteadPREMIUM04Some inputs ignore media_resolution entirely. Count the tokens on your own key first05The color label Gemini returned for the same wallpaper changed — and the model was not the reasonPREMIUM
3. STEP 3◈Advanced
   06Two Kinds of Video Questions: Why I Send "Find It" and "Prove It Isn't There" Down Separate PathsPREMIUM07Define What Counts as a Duplicate Before Adding Embedding Search to Your Image PipelinePREMIUM08Rebuilding the CTR Denominator After AI Search Fans Out Your QueriesPREMIUM09A Provenance Gate That Never Asks Gemini to Name the CountryPREMIUM