Most people know ChatGPT can answer questions, rewrite an email or help brainstorm ideas. But if that’s all you’re using it for, you’re barely scratching the surface of what it can now do.
ChatGPT has evolved from a relatively simple chatbot into a much broader AI workspace. Depending on your plan and settings, it can search the web, analyse documents and spreadsheets, understand images, conduct detailed research, create and edit images, remember useful context and even help with longer multi-step projects.
Some of these features are easy to overlook, particularly if you’ve been using ChatGPT the same way for the past couple of years.
Here are 10 genuinely useful things you can do with ChatGPT that you may not be taking advantage of yet.
1. Upload a PDF and ask questions about it
You don’t necessarily need to read a 70-page report from beginning to end just to find one piece of information.
Upload a PDF to ChatGPT and ask it to summarise the document, explain a difficult section in simpler language, compare different parts of the document or locate information relating to a particular subject. It can also work with common document and presentation formats, making this useful for reports, policies, research papers and other text-heavy files.
The key is to ask specific questions rather than simply saying, “Summarise this.”
For example:
Summarise the five most important findings in this report. For each finding, explain why it matters and tell me where in the document the supporting information appears.
That gives ChatGPT a much clearer job and makes the result easier to verify against the original document.
Useful for: students, researchers, professionals and anyone dealing with long documents.
2. Turn a spreadsheet into something you can actually understand
Spreadsheets are another area where ChatGPT can be surprisingly useful.
You can upload a supported spreadsheet or CSV file and ask ChatGPT to examine the data, identify trends, calculate statistics, clean information or create visualisations. Instead of manually searching through hundreds or thousands of rows, you can start by explaining what you’re trying to discover.
Imagine uploading several months of household expenses and asking:
Analyse this spreadsheet and show me where my spending has increased the most. Group the expenses into useful categories and identify three realistic areas where spending could potentially be reduced.
The same principle can be applied to business data, survey results, inventories, schedules and many other structured datasets.
You should still verify important calculations and conclusions, particularly when the information will influence a significant financial or business decision. But for exploring a dataset and figuring out where to start, AI-assisted analysis can save considerable time.
3. Give ChatGPT a screenshot instead of trying to explain the problem
Sometimes explaining what you’re looking at takes longer than solving the problem.
ChatGPT can analyse uploaded images, screenshots, diagrams and charts. That means you can show it an error message, confusing interface, graph or piece of equipment and ask questions about what’s visible.
For example, instead of typing out a complicated software error, take a screenshot and ask:
What does this error mean, and what should I check first?
You can also upload a screenshot of a chart and ask for help interpreting it, or show ChatGPT an unfamiliar interface and ask what the different sections appear to do.
This is particularly handy when you don’t know the correct terminology to describe what you’re seeing.
4. Use Deep Research when a normal answer isn’t enough
There’s a major difference between asking ChatGPT a question and asking it to properly research one.
Deep Research is designed for more complicated questions that require information to be gathered and synthesised from multiple sources. You provide the outcome you’re looking for, and ChatGPT can develop a research plan, search relevant sources and produce a structured report with citations.
That makes it useful for questions such as:
Compare the major home battery systems currently available in Australia. Consider capacity, warranties, compatibility, typical pricing and major advantages or disadvantages. Prioritise manufacturer documentation and reputable independent sources.
That’s a very different task from asking, “What’s the best home battery?”
Deep Research is most useful when the quality of the sources matters and you want enough information to make a considered decision. Availability and usage limits can vary depending on your ChatGPT plan.
5. Create a Project for something you’re going to keep working on
If you’re constantly starting new chats about the same subject, Projects are worth exploring.
A Project lets you keep related conversations, files and instructions together. Instead of explaining the same background every time you return, you can create a dedicated workspace for a particular goal.
You might create projects called:
Japan Holiday 2027
University Assignment
House Renovation
Small Business
Job Search
You can add relevant files and project-specific instructions so ChatGPT has more of the context it needs when you’re working within that project. Projects are currently available across free and paid ChatGPT plans, although limits and some additional capabilities vary by plan.
For anything that lasts longer than a single conversation, this can make ChatGPT considerably more organised.
6. Create an image — then ask ChatGPT to change it
ChatGPT isn’t limited to text.
You can describe an image you want and have ChatGPT generate it, but the more useful part is that you can continue editing the result conversationally. You might ask it to remove an object, change the background, alter the composition or generate the image at a different aspect ratio.
For example:
Create a clean 16:9 featured image showing a futuristic smart home at night. Use a premium editorial photography style and don’t include any text.
Then, after seeing the result:
Keep everything else, but make the lighting warmer and remove the robot from the foreground.
You can also upload an existing image and describe the changes you want to make. ChatGPT’s current image tools support both generation and editing, although complex edits may not always produce exactly the intended result on the first attempt.
If you’re a blogger, small-business owner or content creator, this can be particularly useful for rapidly developing visual concepts.
7. Ask ChatGPT to compare documents instead of reading them separately
Uploading one document is useful. Uploading several can be even more powerful.
ChatGPT can synthesise information across files, allowing you to ask it to identify differences, similarities, contradictions or missing information. OpenAI specifically lists comparing documents and applying a framework from one document to another among the supported uses for file uploads.
Imagine having three quotations from different companies. Instead of manually building your own comparison, you could ask:
Compare these three quotes in a table. Include total cost, inclusions, exclusions, warranty, payment terms and anything that makes one offer substantially different from the others. Don’t assume that a missing item is included.
That final instruction matters.
AI is most useful when it helps you inspect the evidence rather than inventing information to fill the gaps.
8. Talk to ChatGPT instead of typing everything
For some tasks, a keyboard is actually the slower interface.
ChatGPT supports voice conversations on supported platforms, allowing you to speak naturally and hear responses without typing every prompt. This can be particularly useful for brainstorming, practising a presentation, working through an idea or asking questions while your hands are occupied.
Try something more interactive than a basic question:
I’m preparing for a job interview. Ask me one interview question at a time. After each answer, give me brief feedback and then ask a harder follow-up question.
That turns ChatGPT into something closer to an interactive practice partner.
Voice becomes particularly useful when you stop treating it like dictation and start using it as a conversation.
9. Use ChatGPT Work for bigger tasks, not just individual answers
One of the newer changes to ChatGPT is Work, an experience intended for longer, multi-step tasks and finished deliverables.
OpenAI distinguishes Chat from Work quite clearly: Chat is designed for everyday questions, brainstorming and quick assistance, while Work is intended for tasks such as researching information, analysing material and creating finished documents, spreadsheets, presentations, reports and Sites. Work is rolling out to eligible paid accounts, so you may not see it yet.
The important difference is the mindset.
Instead of asking:
Give me some ideas for a presentation.
A Work-style request could be:
Research this topic using the material I’ve provided and credible current sources. Create a 10-slide presentation for a non-technical audience, including speaker notes and a final sources slide.
As AI tools become more capable, learning to specify the finished outcome you want may become more valuable than learning hundreds of clever individual prompts.
10. Give ChatGPT the outcome, constraints and audience — not just a vague request
This final feature isn’t really a feature at all.
It’s a better way to use everything else.
People often assume getting better AI results requires complicated “prompt engineering.” In many situations, what actually helps is simply giving ChatGPT enough context to understand what success looks like.
Compare:
Write me an email.
with:
Write a friendly but professional email to a customer whose delivery has been delayed by three days. Apologise without sounding defensive, explain that the replacement has now shipped, and keep the message under 150 words.
The second prompt establishes the task, audience, situation, tone and constraints.
You can use the same structure for almost anything:
What do I want?
Who is it for?
What information should you use?
What constraints matter?
What should the finished result look like?
You don’t need a magical collection of prompts.
You need to communicate clearly.
The real trick is knowing when not to trust it
All of these capabilities can make ChatGPT extremely useful, but there’s an important habit worth developing alongside them: verification.
AI can make mistakes. It can misunderstand documents, misinterpret ambiguous information and occasionally present incorrect information confidently.
The higher the stakes, the more important independent verification becomes.
If ChatGPT helps you analyse financial information, don’t automatically make a major financial decision based on the answer. If it summarises an important policy or contract, check the relevant wording in the original. If it provides current information from the web, examine the cited sources when accuracy matters.
Think of AI as a powerful assistant, not an unquestionable authority.
The Tech Boom’s take
The biggest mistake people make with ChatGPT may be thinking of it purely as a better search box.
Its more interesting capabilities appear when you give it something to work with — a document, spreadsheet, screenshot, research problem, collection of files or longer project — and clearly explain the outcome you need.
You also don’t need to use every new feature simply because it exists. The best AI tool is the one that removes friction from something you already need to accomplish.
Start with one of the ideas above and try it on a real task.
You might discover that the most useful thing ChatGPT can do isn’t answering your questions.
It’s helping you finish the work that comes after them.
OpenAI — ChatGPT Capabilities OverviewOpenAI — File Uploads FAQOpenAI — Projects in ChatGPTOpenAI — Deep Research in ChatGPTOpenAI — ChatGPT ImagesOpenAI — ChatGPT Work and Codex
