How to Use ChatGPT: All Basics Covered

ChatGPT can answer a short question without setup, but useful work depends on giving it enough context and checking what comes back. I checked OpenAI’s current help pages in July 2026 to build this beginner guide around the controls you can use now, including web search, file uploads, voice, memory, and custom instructions.

Start a ChatGPT conversation

Open chatgpt.com in a browser, or use the official desktop or mobile app, and sign in if you need chat history or account-based features.

The message composer is where you enter a request and attach supporting material. The sidebar holds previous conversations, while the source or tools control near the composer can expose options such as web search and file upload when they are available to your account.

Start a new chat when an older conversation contains instructions or context that no longer belong to the task. A clean conversation reduces the chance that an earlier request steers the next answer.

Write a prompt that ChatGPT can follow

A prompt is the instruction or question you send. A useful prompt usually includes:

• The outcome you need
• Relevant context or source material
• Constraints such as length, audience, or exclusions
• The output format you want

The request below gives ChatGPT a job, audience, boundary, and format it can follow.

Write a friendly email to a client who missed our project review. Keep it under 120 words, offer two options for rescheduling, and do not imply that the delay is their fault.

You do not need to fit every instruction into one message. Ask a follow-up such as “make the opening less formal” or “show the assumptions you made” while the conversation still contains the relevant context.

Edit an earlier message when its instruction was wrong, and start a new chat when you are changing the subject rather than refining the same result.

If you want reusable structures, adapt a ChatGPT prompt template instead of rebuilding the request each time. The deeper prompt-writing guide explains how context, constraints, and examples affect the response.

Use search, files, images, and voice

Text chat is only the starting point. The available controls depend on your plan, device, region, and current usage limits, so a missing tool does not always mean you are looking in the wrong menu.

Search the web for current information

ChatGPT can search automatically when a question benefits from current information, or you can select Search from the source controls. Search answers can include inline citations and a Sources panel, according to OpenAI’s ChatGPT Search guide.

Ask for links when the answer affects a purchase, deadline, API choice, or other decision that can change. Open the cited source and confirm that it supports the nearby claim because a citation can be relevant without proving every sentence.

Upload a file or image

Use the attachment control to add a supported document, spreadsheet, or image, then tell ChatGPT what to inspect and what form the answer should take.

OpenAI applies upload limits that vary by plan and system conditions. The current File Uploads FAQ is the right place to check limits before a large batch.

Talk with voice

Logged-in users can start a voice conversation on supported mobile apps and desktop web. Voice works well for brainstorming or hands-free questions, but review names, numbers, and links in the written transcript before relying on them.

Make repeated chats more consistent

Custom instructions let you set preferences that apply across chats, such as your preferred language, response length, or technical level. OpenAI says custom instructions are available across plans on web, desktop, iOS, and Android.

Memory differs from the context inside one conversation because it can use saved details and, where available, information from chat history in future conversations.

Review or delete outdated details under Settings, and use Temporary Chat for a conversation that should not appear in history or use memory.

OpenAI may retain a Temporary Chat copy for a limited safety period.

Plan choice matters when you need higher limits or a feature that is restricted on the free tier. Compare the current options in the ChatGPT Go, Plus, and Free guide before paying for capacity you may not use.

Check ChatGPT’s answer before using it

ChatGPT can produce confident text that contains an incorrect fact, invented citation, unsafe command, or calculation error. Treat the response as a draft until you verify the parts that affect money, health, security, legal obligations, production systems, or academic work.

• Open cited sources and match them to the claim.
• Run generated code in a disposable environment before using it in a project.
• Recalculate important numbers with a trusted tool.
• Remove secrets and personal data before uploading text or files.
• Ask a qualified professional to review high-stakes advice.

ChatGPT is most useful when you give it a bounded task and keep responsibility for the result. The complete ChatGPT guide connects these basics to models, practical uses, and the wider feature set.

Frequently asked questions

Account access, privacy, and follow-up behavior cause the most confusion when you begin. These answers cover the boundaries that change how you should use the tool.