What Is ChatGPT? Features, Safety, and Risks Explained

Ask ChatGPT to draft an email, summarize a contract, or explain quantum physics, and the answer comes back in seconds — which is why millions of people now keep a tab open for it. The catch is quieter: by default, your conversations can be used to train OpenAI’s models unless you change one setting, according to OpenAI’s data-controls help page. What you get in return is a capable assistant that still makes mistakes, stores data by default, and varies more between free and paid than most people expect — so it pays to understand the tool before trusting it with something sensitive.

Launch date: November 30, 2022 ·
Developer: OpenAI ·
Free tier models: GPT-3.5 (default), GPT-4o mini ·
Paid subscription (ChatGPT Plus): $20/month (includes GPT-4, GPT-4o) ·
Estimated monthly active users: Over 180 million (as of 2024) ·
Supported languages: 95+ languages

ChatGPT at a glance

Six numbers capture most of what people ask about ChatGPT — and they’re worth pinning down before you get into the details.

What exactly is ChatGPT used for?

ChatGPT is OpenAI’s AI chatbot, and the fastest route most people have to the company’s GPT language models. Under the hood it runs on large neural networks trained on enormous amounts of public text; the model predicts the next word in a sequence, which is why replies come back in natural language rather than as a list of links. That one design choice is why the same tool can draft an email, explain a concept, or write code.

Content creation and editing

• Writing blog posts, emails, and social media copy
• Rewriting text in a different tone or reading level
• Translating between dozens of languages

For a writer, ChatGPT is less a ghostwriter than a fast first-draft partner: describe your audience and the tone, and the model returns a structure you can trim. If email etiquette is part of that workflow, this guide to What Does CC Mean in an Email? is a useful companion.

Customer support automation

• Drafting replies to routine customer questions
• Summarizing ticket threads for human agents
• Powering chat widgets that deflect simple requests

Companies use the same underlying model to cut response times, and human agents take over when the conversation turns complex.

Coding assistance and debugging

• Explaining what a snippet of code does
• Writing functions and scripts from a plain-language description
• Suggesting fixes for error messages

Developers use ChatGPT as a pair programmer that doesn’t know your codebase but can still help you think a problem through.

Education and tutoring

• Explaining a topic in simpler terms
• Generating practice questions and quizzes
• Breaking down math and science problems step by step

Students get a patient tutor on demand. That convenience also forces schools to define what counts as original work.

Research and data analysis

• Summarizing long documents and contracts
• Extracting key points from meeting notes
• Brainstorming search angles and frameworks

The caveat is real: the model can produce fluent-sounding summaries that are wrong, so every output needs a human check before it drives a decision.

Creative writing and brainstorming

• Generating story ideas and outlines
• Creating names, taglines, and campaign concepts
• Turning rough notes into readable drafts

It’s a low-cost creativity engine — and the quality of what comes back depends heavily on how specific your prompt is.

Is ChatGPT free to use?

Yes, with an important caveat. OpenAI’s free tier includes unlimited text chats with GPT-3.5 as the default model and limited access to GPT-4o mini. The heavier features — image creation, voice chats, deep research, and file uploads — run on a limited number of messages.

Free tier capabilities and limitations

• Unlimited text chats with GPT-3.5 by default
• Limited messages with GPT-4o mini
• Limited messages for uploads, image creation, voice chats, and deep research

For most everyday tasks — email drafts, explanations, coding help — the free tier is enough. The limits start to bite when you want the newest model to read a file or generate an image.

ChatGPT Plus subscription

• $20/month subscription
• Priority access to GPT-4 and GPT-4o
• Image generation and other extras
• Same safety and privacy protections as the free version

OpenAI’s Plus plan page documents the price and the model access, and the company explicitly says Plus keeps the same safety and privacy protections as the free tier. The subscription’s real value is speed and access, not extra security.

Team, Enterprise, and API pricing

• Team and Enterprise plans for businesses
• API access for developers building their own apps
• Usage-based pricing that scales with volume

OpenAI positions these as separate products from the consumer chatbot, so businesses don’t have to squeeze their workflows into the consumer interface.

The trade-off: you pay with money or with patience. The free tier is genuinely useful, but the newest models, image generation, and the lowest wait times sit behind the $20/month plan.

How do you use ChatGPT for beginners?

Getting started takes about two minutes, and you don’t need to install anything — ChatGPT works in a browser and in official apps for iOS and Android. The beginner path looks like this:

1. Create an account. Go to chat.openai.com and sign up with an email address or continue with a Google or Microsoft account.
2. Open a new chat. Type your request into the text box at the bottom of the screen. Your conversation history is on the left, and the model selector sits at the top.
3. Write a specific prompt. Instead of “write about marketing,” try “write a 200-word LinkedIn post about email marketing for a small bakery.”
4. Refine with follow-ups. Ask ChatGPT to shorten the answer, change the tone, or simplify the language.
5. Regenerate when needed. If the first response misses the mark, hit regenerate or edit your prompt and try again.

On day one, open the settings and check the data controls mentioned in the intro — they’re the difference between a setup that trains on your chats and one that leaves them alone.

Writing effective prompts

• Name the format: list, table, email, outline
• Give the audience and tone
• Break big tasks into smaller questions

Prompt quality is the single biggest lever on output quality. The same model produces dramatically different answers depending on how specific the instructions are.

Understanding responses and follow-ups

• ChatGPT keeps the thread of the conversation, so follow-ups refine earlier answers
• Starting a new chat resets the context
• Every response offers copy and regenerate actions

If you work in a language-heavy role, the same chat window can handle a quick translation first pass before you run the text through a dedicated service like this English-to-Ukrainian translation guide.

The habit that matters most: treat the first response as a rough draft and spend the next minute asking follow-ups. The back-and-forth is where ChatGPT stops sounding generic and starts being useful.

Is GPT Chat safe to use?

Safety depends on which version of the question you mean. Technically, the infrastructure is well protected: OpenAI says ChatGPT encrypts data in transit using TLS 1.2, encrypts data at rest using AES-256, and restricts access through strict access controls, with 24/7 security monitoring (OpenAI’s pricing page). Behaviorally, the picture is more mixed — the model can be tricked, and privacy depends on settings you have to change yourself.

Data encryption and storage

• Encryption in transit with TLS 1.2
• Encryption at rest with AES-256
• Access restricted through strict access controls
• 24/7/365 monitoring for security incidents

That is enterprise-grade protection, roughly in line with what a bank would expect from a cloud provider.

Privacy policy and data sharing

• OpenAI says it does not sell ChatGPT data or share conversations with advertisers or marketing partners
• Conversations can be used to improve OpenAI’s models while the training setting is on
• Users can request a copy of their data or delete their account from settings

The no-selling statement comes from OpenAI’s privacy policy; the training toggle and account controls are documented in the data-controls guide linked in the intro.

Age restrictions and parental controls

• ChatGPT is intended for users 13 and older
• Users between 13 and 18 need parental consent
• Schools and parents can set limits within OpenAI’s account tools

If ChatGPT is being set up for a teenager, the key step is the same as for adults: turn off model training and keep the account tied to a parent’s permission.

Safety features and content filters

• ChatGPT includes safeguards like security testing and monitoring for suspicious activity
• Content filters block obvious abuse and disallowed requests
• The ChatGPT agent adds confirmation prompts for high-impact actions

Those agent safeguards matter — more on that in the risks section.

What this means: OpenAI built strong technical rails, then left the privacy lever in your hands. The encryption is excellent; the default training setting is not something you want to leave untouched.

The implication: the security features are robust, but the privacy defaults require active change — a pattern that rewards a deliberate setup.

What are the risks of using ChatGPT?

ChatGPT’s biggest risk isn’t a hacker — it’s misplaced trust. The model is trained to produce fluent answers, not to guarantee they’re true, and the more you rely on it, the more opportunities it has to be confidently wrong.

Inaccurate or misleading information

• The model can produce plausible-sounding but incorrect answers
• It has no built-in mechanism to verify facts against live sources
• Errors often sound confident, which makes them harder to catch

This is why ChatGPT output should be reviewed like a draft from a smart intern, not a final answer from an expert.

Bias in AI responses

• The model reflects patterns in its training data
• That can reproduce stereotypes or skewed perspectives
• Mitigations exist but don’t eliminate bias

The training data comes from the public internet, so the model inherits the internet’s biases — and can pass them along in a polished tone.

Privacy and data misuse

• Conversations are retained by default unless you opt out
• Sensitive text you type can end up in training data
• Turning off “Improve the model for everyone” stops new conversations from being used for training

OpenAI’s own model-training guide is explicit about that last point: when the control is off, new conversations will not be used to train its models (OpenAI’s model-training guide).

Job displacement concerns

• Automation may replace some writing, support, and coding tasks
• New roles are emerging around AI oversight and prompt engineering
• The net effect on employment is still unknown

That uncertainty is why companies adopting ChatGPT are also hiring people to check its output — the cheapest AI implementation is the one that doesn’t surprise you.

Over-reliance on AI

• Routine tasks get faster, and skills like drafting from scratch atrophy
• Teams can lose fact-checking habits when answers always sound fluent
• Dependency is hard to reverse once workflows are built around the model

The pattern: every risk traces back to one design choice. ChatGPT is a prediction engine optimized for fluency, so it will occasionally invent, inherit bias, or amplify whatever sensitive detail you typed in.

That means users hold the final responsibility — the model’s fluency is a tool, not a guarantee.

What are five things I should never tell ChatGPT?

The general rule is simple: if you wouldn’t write it on a postcard, don’t type it into a chat window. Because ChatGPT retains conversations by default and can use them for training, the safest assumption is that anything you type is stored. That makes prevention the first line of defense.

1. Personal identifiers. Social Security numbers, government IDs, addresses, phone numbers.
2. Financial details. Bank account numbers, credit card numbers, payment credentials.
3. Passwords and security credentials. Login passwords, API keys, one-time codes, recovery answers.
4. Health information. Specific diagnoses, medication lists, anything that identifies you as a patient.
5. Confidential business information. Trade secrets, unreleased product plans, client lists, anything under an NDA.

The cleanup tools exist, and they’re worth knowing: OpenAI lets signed-in users request a copy of their data, turn off training, or delete the account entirely from settings. But cleanup is a safety net, not a plan — the reliable move is to leave sensitive facts out of the conversation in the first place.

The point isn’t paranoia; it’s defaults. ChatGPT remembers conversations, learns from them by default, and can act on your behalf in newer features — which makes it the wrong place for the five categories above.

That distinction puts the burden on each user to assess what’s safe to share before typing.

Pros and cons of ChatGPT

Put the two halves side by side — the utility is real and the risks are mostly manageable, but they’re managed by you.

The trade-off: ChatGPT gives you a brilliant generalist at near-zero cost and charges you in attention — someone has to check its work, manage its settings, and know what not to share.

ChatGPT’s evolution

Six milestones in six years — each GPT release moved ChatGPT closer to the product it is today, and most of them changed the price structure too.

The pattern: OpenAI used ChatGPT as a research demo in 2022, then spent the next two years turning it into a business. The free tier never went away — it just got more competition.

What’s confirmed, what’s still unclear

Some things about ChatGPT are settled enough to plan around, and the list below matches the sources cited above — OpenAI’s privacy policy, pricing page, Plus plan page, and data-controls guide. A few important details are still moving.

Confirmed facts

• ChatGPT is developed by OpenAI
• The free tier uses GPT-3.5 by default, with limited access to GPT-4o mini
• The paid tier adds GPT-4 and GPT-4o
• OpenAI retains conversations unless users opt out in settings

What’s unclear

• Whether the free tier’s GPT-4o access stays as open as it is today
• Exact retention windows for conversations saved by default
• How pricing changes as new flagship models arrive
• The net employment effect of writing, coding, and support automation

The honest read: the basics are settled — ChatGPT is OpenAI’s chatbot, free to enter, paid for power — while pricing, retention, and the scale of job disruption remain genuinely open questions.

What OpenAI’s own documents say

Some of the most useful commentary on ChatGPT comes from OpenAI’s own documentation — read closely, the warnings are often more specific than the marketing.

Temporary Chat conversations do not appear in chat history and are not used to improve OpenAI’s models.

— OpenAI communications privacy policy (privacy policy)

Turning off “Improve the model for everyone” means new conversations will not be used to train OpenAI’s models.

— OpenAI Help Center, model-training guide

ChatGPT agent can access sensitive data such as emails, files, or account settings when signed into websites, and it can perform actions on behalf of the user, such as sharing files or modifying account settings.

— OpenAI Help Center, ChatGPT agent guide (agent guidance)

The implication: OpenAI is transparent about both sides — the documentation that explains encryption also documents an agent that can touch your email. The details are all in the wording, and the wording rewards a slow read.

What this means for you

By now the picture is fairly complete: ChatGPT is a powerful language model wrapped in a chat interface, free to start, and safer when you actively manage the settings. The version of ChatGPT that shows up in demos — clever, instant, boundless — is real, and so is the version that gives wrong answers with confidence and collects data unless you opt out. For the millions of people using the free tier, the decision is practical: treat ChatGPT as a draft generator that you verify, a conversation partner that you keep at arm’s length, or a convenience that quietly collects the details you type.

Frequently asked questions