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Questa guida illustra tutte le funzionalità di ChatGPT:
- Iniziare — Create your OpenAI account and finish phone verification
- Come utilizzare la generazione di testo — Draft emails, reports and social posts from one short prompt
- Come utilizzare l'analisi dei dati — Read raw data, run the maths and explain what it found
- Come utilizzare la navigazione web — Check the live internet before it answers
- Come utilizzare i modelli avanzati — Switch between fast models and deep reasoning models
- How to Use Audio and Speech — Hold real voice conversations through the official app
- How to Use GPT Integrations — Run custom GPT bots trained on specialised subjects
- Come utilizzare la generazione di immagini tramite intelligenza artificiale — Generate images with DALL-E 3 without leaving the conversation
- Come utilizzare Study and Learn — Explain hard topics simply and build practice material
- Come utilizzare i progetti — Group work so ChatGPT remembers the brief every time
Tempo necessario: 5 minuti per ogni servizio
In questa guida troverete anche: Consigli professionali | Errori comuni | Risoluzione dei problemi | Prezzi | Alternative
Perché fidarsi di questa guida
I have used ChatGPT daily since launch and tested every feature covered here. This tutorial comes from real hands-on work, not vendor screenshots.

ChatGPT is the Assistente AI that hundreds of millions of people now open before Google.
You can access ChatGPT free in any browser and get instant answers in seconds.
Most users stop at one box and one answer.
This guide shows you how to use ChatGPT properly, feature by feature.
Passo dopo passo, con schermate e consigli da professionisti.
Tutorial di ChatGPT
This complete How to Use ChatGPT tutorial walks through every feature in order.
It starts at your first prompt and ends with power-user habits.

ChatGPT
Write, research, analyse and create in one chat window. The free plan costs nothing. ChatGPT Plus adds GPT-4 class models, DALL-E 3 images and priority access for $20 a month. Download ChatGPT today and run your first prompt in under three minutes.
Guida introduttiva a ChatGPT
Before any feature works, finish this one-time setup.
Ci vogliono circa tre minuti.
Here is what the process looks like in practice:
Ora analizziamo passo passo ciascuna fase.
Step 1: Create Your OpenAI Account
Go to the ChatGPT home page and click Sign up.
You can sign up with an email address, a Google login or a Microsoft account.
OpenAI asks for a valid phone number, and phone verification blocks throwaway signups.
✓ Punto di controllo: Controlla il tuo posta in arrivo per il messaggio di conferma.
Step 2: Open the Web App or Install the Mobile App
On desktop, click Log in and work straight from your browser.
On phones, install the official app rather than a mobile browser tab.
The mobile apps sync your chat history across devices and add voce conversazioni.
Dovresti visualizzare la dashboard principale con le opzioni di streaming.

✓ Punto di controllo: You can see the message box and the side panel.
Step 3: Set Custom Instructions
Click your profile, then click Settings and open Custom Instructions.
Tell it your role, your industry and how long answers should be.
Every new chat now starts with that professional input already loaded.
✅ Fatto: Multistream
Come utilizzare la generazione di testo ChatGPT
Generazione di testo lets you turn a rough idea into finished writing in seconds.
Ecco come usarlo, passo dopo passo.
Passaggio 1: Apri una nuova chat
Click New chat in the left side panel.
Type your first prompt into the message box and hit Enter.
Step 2: Add Context and an Output Contract
Prompt ChatGPT with your audience, format and length in one message.
Vague prompts create generic answers, so extra details sharpen every answer.
Ecco come si presenta:

✓ Punto di controllo: A finished draft appears below your request in the chat.
Fase 3: Perfezionare la bozza
Edit your initial prompt or ask for a rewrite.
✅ Risultato: You have publish-ready copy built from one prompt.
💡 Consiglio da professionista: Ask ChatGPT to act as a writing coach before you request the rewrite.
Come utilizzare l'analisi dei dati di ChatGPT
Analisi dei dati lets you upload a spreadsheet and get charts without writing code.
Ecco come usarlo, passo dopo passo.
Step 1: Attach Your File
Click the paperclip icon and pick a CSV or Excel file.
Advanced data analysis is included with ChatGPT Plus.
Step 2: Ask a Plain-English Question
Describe the answer you want, not the formula.
ChatGPT writes and runs Python code behind the scenes.
Ecco come si presenta:

✓ Punto di controllo: A chart or summary table renders inside the conversation.
Step 3: Download the Output
Request a chart or a cleaned file, then save it.
✅ Risultato: Hours of manual spreadsheet work finish in about two minutes.
💡 Consiglio da professionista: Ask for the code it ran so you can repeat the job next month.
How to Use ChatGPT Web Browser
Navigazione web lets you pull up-to-date information from live pages instead of stale memory.
Ecco come usarlo, passo dopo passo.
Step 1: Ask a Time-Sensitive Question
Mention today, this week or 2026 in your request.
Web browsing switches on automatically for current topics.
Step 2: Check the Citations
Open the source links listed under the reply.
This is the fastest guard against misleading information.
Ecco come si presenta:

✓ Punto di controllo: Source links appear beneath the reply on the page.
Step 3: Narrow the Search
Name the exact site or report you trust most.
✅ Risultato: You get current facts with a citation trail you can verify.
💡 Consiglio da professionista: Paste a URL directly and ask for a summary of that single page.
Come utilizzare i modelli avanzati di ChatGPT
Modelli avanzati lets you pick a smarter engine for the jobs that actually need one.
Ecco come usarlo, passo dopo passo.
Step 1: Open the Model Picker
Click the model name at the top of the page.
Plus subscribers get access to the GPT-4 model and later releases.
Step 2: Match the Model to the Task
Use reasoning models for maths, logic and long documents.
Fast models handle short chat and quick lookups better.
Ecco come si presenta:

✓ Punto di controllo: The model name at the top updates to your choice.
Step 3: Compare Two Answers
Re-run the same prompt on a second model.
✅ Risultato: Every request runs on the engine that suits it best.
💡 Consiglio da professionista: Priority access means paid users keep working during high traffic hours.
Come utilizzare l'audio e la voce di ChatGPT
Audio e parlato lets you talk to ChatGPT out loud and listen to the reply.
Ecco come usarlo, passo dopo passo.
Step 1: Install the Mobile App
Download the official app from the App Store or Google Play.
OpenAI offers mobile apps for iOS and Android.
Step 2: Tap the Headphone Icon
The headphone icon starts a hands-free voce sessione.
Speak normally and pause when you want the answer.
Ecco come si presenta:

✓ Punto di controllo: A pulsing cerchio shows the app is listening to you.
Step 3: Keep the Thread Going
Ask follow-ups by voice without touching the screen.
✅ Risultato: You can work through ideas while walking or driving.
💡 Consiglio da professionista: Voice mode is the fastest way to capture creative inspiration on the move.
Come utilizzare le potenti integrazioni GPT di ChatGPT
Potenti integrazioni GPT lets you load a purpose-built assistant instead of re-explaining your job.
Ecco come usarlo, passo dopo passo.
Passaggio 1: Apri il negozio GPT
Click Explore GPTs in the side panel.
ChatGPT Plus unlocks GPTs built on specialised data.
Step 2: Pick a Bot for Your Task
Search by job, then start a chat with it.
Each bot already carries its own instructions and files.
Ecco come si presenta:

✓ Punto di controllo: The bot name shows above the message box.
Step 3: Build Your Own
Click Create and describe the assistant you need.
✅ Risultato: A specialist AI assistant handles your repeat work.
💡 Consiglio da professionista: Save your best internal prompt as a private GPT for the whole team.
How to Use ChatGPT AI Image Generator
Generazione di immagini AI lets you create artwork straight inside the chat window.
Ecco come usarlo, passo dopo passo.
Step 1: Describe the Image
Write subject, style, mood and aspect ratio in one line.
DALL-E 3 reads long descriptions better than keyword lists.
Step 2: Request an Edit
Ask for a colour, angle or background change.
ChatGPT keeps the earlier version in context.
Ecco come si presenta:

✓ Punto di controllo: A generated picture appears inside the same chat.
Passaggio 3: Salvare il file
Click the download arrow on the finished picture.
✅ Risultato: You have original artwork built from a plain-text request.
💡 Consiglio da professionista: Ask for three variations at once, then pick the strongest one.
How to Use ChatGPT Study and Learn Tool
Studia e impara lets you turn any subject into a study plan you will actually follow.
Ecco come usarlo, passo dopo passo.
Step 1: Set Your Level
Say what you already know and where you struggle.
This is where tailored advice beats a generic textbook.
Passaggio 2: Richiedi il materiale per esercitarti
Ask for practice quizzes, trivia or a study schedule.
Use Chain-of-Thought prompting so it explains each step of the reasoning.
Ecco come si presenta:

✓ Punto di controllo: A structured quiz or weekly schedule appears in the chat.
Step 3: Test Yourself
Answer without help, then ask for marking.
✅ Risultato: You hold a personal tutor that adapts to your gaps.
💡 Consiglio da professionista: Ask it to grade your answer harshly and provide feedback on weak spots.
Come utilizzare i progetti personalizzati di ChatGPT
Progetti personalizzati lets you keep related chats, files and rules in one folder.
Ecco come usarlo, passo dopo passo.
Passaggio 1: Creare un progetto
Click Projects in the side panel, then name it.
Add the client, product or course it covers.
Step 2: Upload Reference Files
Drop style guides, briefs or data into the project.
Every chat inside it reads those files automatically.
Ecco come si presenta:

✓ Punto di controllo: New chats open inside the project with the files attached.
Step 3: Set Project Instructions
Write the tone and format rules once.
✅ Risultato: Your context loads itself instead of being re-typed daily.
💡 Consiglio da professionista: Custom Instructions save preferences for future chats across every project.
Suggerimenti e scorciatoie di ChatGPT Pro
After years of daily use, these are the habits that save the most time.
Fine-tune your saved preferences every few months as your work changes.
Scorciatoie da tastiera
| Azione | Scorciatoia |
|---|---|
| Start a new chat | Ctrl + Maiusc + O |
| Focus the message box | Maiusc + Esc |
| Copy the last reply | Ctrl + Maiusc + C |
| Toggle the side panel | Ctrl + Maiusc + S |
Funzionalità nascoste che la maggior parte delle persone non nota
- Archive instead of delete: Archive conversations to move less relevant chats out of the way without losing them.
- Share a chat by link: ChatGPT can generate a unique URL for one conversation, which beats pasting screenshots.
- Turn off training: In data controls you can stop new chats being used as training data for OpenAI’s models.
Here is the workspace I use for most of these habits:

ChatGPT: errori comuni da evitare
Mistake #1: Writing a One-Line Prompt
❌ Sbagliato: Sending write a blog post and expecting a usable result.
✅ A destra: Name the reader, the format, the length and the tone in your first prompt.
Mistake #2: Trusting Every Answer
❌ Sbagliato: Publishing figures straight from the chat without a check.
✅ A destra: Fact-check ChatGPT’s responses, because dates and figures can carry misleading information.
Mistake #3: Starting a New Chat for Every Domanda
❌ Sbagliato: Opening a fresh thread after each reply and losing all context.
✅ A destra: Stay in one conversation, since ChatGPT remembers what you told ChatGPT earlier in that thread.
Risoluzione dei problemi di ChatGPT
Problem: Answers Are Generic or Wrong
Causa: Your prompt gave no audience, format or context.
Aggiustare: Rewrite the request with details, then ask it to explain its reasoning step by step.
Problem: The Page Is Slow or Unavailable
Causa: High traffic hits free accounts first during peak hours.
Aggiustare: Retry in a few minutes, or upgrade for general access even at busy times.
Problem: Your Chat History Disappeared
Causa: History is switched off in your data settings.
Aggiustare: Turn it back on, or you will not reach past conversations on any device.
📌 Nota: If none of these fix your issue, contact OpenAI support.
Che cos'è ChatGPT?
ChatGPT è un'IA chatbot from OpenAI that answers questions and creates content from plain-language prompts.
Think of it as a very fast research assistant who types.
It was trained on huge volumes of text, then tuned with reinforcement learning from human feedback.
That training is why it will reject inappropriate requests and refuse unsafe content or illegal activities.
It is not perfect. It can guess at incorrect premises and produce nonsensical answers.
Guarda questa breve panoramica:
Include le seguenti caratteristiche principali:
- Generazione del testo: Drafts emails, reports and social posts from one short prompt.
- Analisi dei dati: Reads spreadsheets, runs the maths and returns charts.
- Navigazione web: Checks live sources for up-to-date information.
- Modelli avanzati: Lets you switch engines for harder reasoning work.
- Audio and Speech: Runs voice conversations through the mobile app.
- Integrazioni GPT: Loads custom bots built for one subject.
- Generazione di immagini AI: Creates pictures with DALL-E 3 inside the chat.
- Studia e impara: Builds quizzes, schedules and simple explanations.
- Progetti: Keeps chats, files and rules grouped together.
Per una recensione completa, consulta la nostra Recensione di ChatGPT.
Here is the interface you will be working in:

Prezzi di ChatGPT
Here is what ChatGPT costs in 2026:
| Piano | Prezzo | Ideale per |
|---|---|---|
| Gratuito | $0/mese | Casual users testing the basics |
| Più | $20/mese | Daily users who want the newest model improvements |
| Professionista | $ 200/mese | Researchers running heavy reasoning workloads |
| Squadra | 25 $/utente/mese / 30 $/utente/mese | Small teams sharing GPTs and workspaces |
Prova gratuita: No trial needed. The free plan is permanent, and you only pay when you want more.
Garanzia di rimborso: None advertised. Cancel any time and the plan runs to the end of the billing period.
Here is the plan comparison inside your account:

💰 Miglior rapporto qualità-prezzo: Plus — OpenAI’s paid subscription costs $20 a month.
It adds GPT-4 class models, faster response times and priority access to new features.
ChatGPT contro alternative
How does ChatGPT compare against other chatbots? Here is how the leading AI chatbots line up:
| Attrezzo | Ideale per | Prezzo | Valutazione |
|---|---|---|---|
| ChatGPT | All-round daily work | $20/mese | ⭐ 4.7 |
| Claudio | Long documents and writing | $20/mese | ⭐ 4.7 |
| Perplessità | Sourced research | $20/mese | ⭐ 4,5 |
| Grok | Real-time social context | 30 dollari al mese | ⭐ 4.2 |
| Ricerca profonda | Low-cost reasoning | $0/mese | ⭐ 4.3 |
| Mano | Autonomo agent tasks | $39/mese | ⭐ 4.1 |
| Andi Ricerca | Ad-free search answers | $0/mese | ⭐ 4.0 |
| Tu.com | Multi-model search | 15 dollari al mese | ⭐ 4.2 |
Scelte rapide:
- Il migliore in assoluto: ChatGPT — widest feature set and the largest GPT library.
- Miglior budget: Deepseek — strong reasoning at no cost.
- Ideale per principianti: ChatGPT — the simplest first prompt experience of any AI chatbot.
- Best for cited research: Perplexity — every claim ships with a source link.
🎯 Alternative a ChatGPT
Cerchi alternative a ChatGPT? Ecco le migliori opzioni:
- 🌟 Claude: Handles very long documents and keeps a warmer, more careful writing voice.
- 🔍 Perplessità: Search-first assistant that footnotes every claim with a live link.
- 🔥 Grok: Pulls real-time posts, so it reads breaking chatter faster than most.
- 💰 Ricerca approfondita: Open-weight models that give strong reasoning for free.
- 🚀 Mano: Agent-style tool that runs multi-step jobs while you do something else.
- 👶 Andi Cerca: Clean, ad-free answers for people who just want a quick result.
- 🎯 You.com: Lets you swap between several models inside one search page.
- 🧠 Gemelli: Deep Google Workspace links for Docs, Gmail and Drive users.
- 💼 Copilota: Sits inside Microsoft 365, which suits Word and Excel heavy teams.
- ⚡ Pokee: Lightweight agent focused on quick automations and tool calls.
Per l'elenco completo, consultare il nostro Alternative a ChatGPT guida.
⚔️ ChatGPT a confronto
Here is how ChatGPT stacks up against each competitor:
- ChatGPT contro Claude: Claude writes longer and cleaner. ChatGPT wins on images, data analysis and its GPT library.
- ChatGPT contro Perplessità: Perplexity is better for cited research. ChatGPT is better for creating the actual work.
- ChatGPT contro Grok: Grok is faster on live social news. ChatGPT is stronger at structured, careful output.
- ChatGPT contro Deepseek: Deepseek is cheaper. ChatGPT has the apps, voice mode and integrations around the model.
- ChatGPT contro Manus: Manus runs longer autonomous jobs. ChatGPT is more reliable for everyday desk work.
- ChatGPT vs Andi Search: Andi is a lighter search tool. ChatGPT does far more than answer questions.
- ChatGPT contro You.com: You.com offers model choice. ChatGPT offers depth inside one polished product.
- ChatGPT contro Gemini: Gemini wins for Google Workspace users. ChatGPT wins on custom bots and platform independence.
- ChatGPT vs Copilot: Copilot wins inside Office files. ChatGPT wins everywhere else, especially creative work.
- ChatGPT contro Pokee: Pokee targets automazione. ChatGPT covers writing, analysis and images in one place.
Inizia subito a usare ChatGPT
Hai imparato a utilizzare tutte le principali funzionalità di ChatGPT:
- ✅ Generazione di testo
- ✅ Analisi dei dati
- ✅ Navigazione web
- ✅ Modelli avanzati
- ✅ Audio and Speech
- ✅ Integrazioni GPT
- ✅ Generazione di immagini tramite intelligenza artificiale
- ✅ Studia e impara
- ✅ Progetti
Passo successivo: Scegli una funzionalità e provala subito.
La maggior parte delle persone inizia con la generazione di testo.
Ci vogliono meno di cinque minuti.
Domande frequenti
Posso usare ChatGPT gratuitamente?
Yes. The free plan covers basic chat and the mobile app at no cost. Paid plans add faster models and higher limits.
Quanto costa ChatGPT?
Free is $0/month and Plus is $20/month. Pro costs $200/month. Team runs $25/user/month or $30/user/month depending on billing term.
Come posso accedere a ChatGPT?
Visit the ChatGPT home page, click Sign up, then use an email, Google or Microsoft account. A valid phone number completes phone verification.
Come utilizzare ChatGPT nel modo più efficace?
Give context, name your audience and set the output format in your first prompt. Then refine the reply instead of starting over.
È possibile utilizzare ChatGPT senza registrarsi?
Limited guest use exists on some pages. Without an account you cannot save chat history or reach past conversations.












