ChatGPT

About ChatGPT

ChatGPT is OpenAI's conversational AI assistant, on the web at chatgpt.com and as apps for iOS, Android, macOS, and Windows. You type a question or task in plain language, and it answers in a natural conversation, remembering context so you can ask follow-ups or refine the answer. It is used for writing, coding, research, learning, and everyday questions. Default models belong to the GPT-5 family, with a Thinking mode for harder problems, plus image generation, voice, file analysis, web search, and deep research.

Key features

• Conversational chat: multi-turn dialogue with memory, so it can refer back to things you mentioned earlier.
• GPT-5 family models: a fast default model for everyday tasks, plus a Thinking mode for maths, coding, and complex reasoning.
• Image generation: create and edit images directly inside the chat, from illustrations and posters to diagrams.
• File upload and analysis: upload documents, spreadsheets, and PDFs, then ask questions, summarize them, or chart the data.
• Web search and deep research: look up current information with sources, or run longer investigations that return a structured report.

How to use it

1. Sign up for a free account on chatgpt.com and open a new chat.
2. Describe what you need in plain language, with enough detail: the goal, the audience, and any constraints.
3. Refine the answer with follow-ups such as make it shorter or give me three alternatives.
4. For documents, upload the file and ask a specific question, for example summarize the main risks in this contract.
5. For coding, paste the code or describe the bug and ask for a fix with an explanation.
6. Use the Thinking mode for hard reasoning, and web search or deep research when the answer depends on current facts.

Pricing

ChatGPT has a free plan with daily usage limits, enough for casual use. Plus costs 20 dollars per month with much higher limits, adding the Thinking mode, image and video generation, custom GPTs, and Projects. Pro starts at 100 dollars per month for heavy professional use, with much higher usage and the strongest reasoning models. Business starts at 20 dollars per user per month; Enterprise is priced by contract. Prices and limits change, so check the pricing page before subscribing.

Strengths

• Extremely versatile: one tool covers writing, coding, analysis, research, and brainstorming.
• Strong reasoning on hard problems, especially with the Thinking mode enabled.
• Memory and Projects make it genuinely useful for ongoing work, not just one-off questions.

Limitations

• It can produce confident-sounding answers that are wrong, so important facts need checking against a reliable source.
• Free and lower tiers have usage caps, and you may be switched to a smaller model when the limit is reached.
• It does not truly know things after its training data; for current events it depends on web search.
• Conversations may be used to improve the models unless you change the data settings.