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Chat assistants · by OpenAI

ChatGPT review

The general-purpose AI assistant most of your coworkers already use.

Pricing modelfreemium
Free tierYes
Best forFirst drafts of emails, memos, proposals, and reports you will edit before sending
Last reviewedSeptember 2026

ChatGPT is OpenAI's chat assistant and, for most people, the first AI tool they ever tried. You type a request in plain English, it answers, and you refine in the same thread. Underneath sits OpenAI's current GPT-5 series, and the app decides for you whether a question needs a quick reply or a slower reasoning pass.

What makes it useful at work is everything built around the chat box: file uploads for PDFs and spreadsheets, web search with linked sources, image generation, voice, a memory that carries context between chats, and Projects that keep related files and instructions together. Paid plans add deep research (a cited report built from dozens of sources) and an agent mode that works inside a browser for you.

The trade-off is that ChatGPT is confident even when it is wrong. It will invent a citation, misread a number in a table, or describe a policy that never existed, all in the same fluent tone it uses when it is right. Treat it as a fast, well-read colleague whose work you always check.

Best for

  • First drafts of emails, memos, proposals, and reports you will edit before sending
  • Summarizing long documents, transcripts, and threads you do not have time to read closely
  • Working through a spreadsheet export: cleaning data, spotting trends, writing formulas
  • Brainstorming options, objections, and questions before a meeting or negotiation
  • Learning a new topic quickly by asking follow-up questions in plain language

Not ideal for

  • Anything you cannot verify yourself, such as legal citations, tax rules, or medical dosages
  • Confidential client, patient, or employee data on a personal account without your employer's approval
  • Precise arithmetic across large datasets unless you ask it to run code and show its work

Key features

File and image uploadsDrop in PDFs, Word files, spreadsheets, screenshots, and photos. It can read a contract, pull totals from a scanned invoice, or describe a chart. For spreadsheets it writes and runs Python code on the data, which is far more reliable than asking it to do math in prose.
Web search with sourcesSearch mode pulls in current web results and links to them, which closes the gap left by the model's training cutoff. Click through to the sources before you repeat a fact in a client deliverable.
Projects, custom instructions, and memoryProjects group chats, uploaded files, and standing instructions for one client or workstream. Memory lets the assistant remember your role and preferences across conversations; you can review and delete what it has stored in Settings.
Custom GPTsAnyone on a paid plan can build a saved assistant with its own instructions and reference files, then share it with a team. Common uses: a style-guide checker, an onboarding FAQ bot, or a proposal template filler.
Deep research and agent modeDeep research reads many sources and returns a long, cited report; it takes minutes and suits market scans and vendor comparisons. Agent mode clicks through websites to complete multi-step tasks. Both have plan-based quotas; check the vendor's current documentation.

Pricing

A free tier with usage limits; paid individual plans (Plus for most people, a much pricier Pro tier for heavy users); Team plans with shared workspaces; Enterprise and Edu plans with admin controls, stronger data protections, and higher limits.

Plus has stayed at twenty dollars per month since launch, as of mid-2026; pricing changes often, so confirm on OpenAI's site.

Pricing changes often. Confirm current plans on the vendor's site before you buy.

Pros and cons

Pros

  • The broadest feature set of any consumer assistant: search, files, images, voice, code execution, and agents in one place
  • A huge user base means tutorials, templates, and coworkers who already know it
  • Runs code for data analysis, so numbers can be checked rather than guessed
  • Custom GPTs and Projects make repeated workflows easy to standardize across a team

Cons

  • Fluent, confident errors: it fabricates sources, misquotes figures, and fills gaps with plausible fiction
  • Usage limits on the best models can interrupt a working session on free and Plus plans
  • Personal-account chats can be used for training unless you turn that off
  • Long conversations drift; it loses track of earlier instructions and you have to restate them

How people use ChatGPT at work

Marketers: turn one webinar into a week of content

Paste the transcript and ask for a blog outline, three LinkedIn posts, and an email teaser, each with a stated audience and word limit. Keep the chats in a Project that holds your brand voice notes so every draft starts from the same rules. Check every product claim against your own spec sheet.

Accountants: sanity-check a budget export

Upload the spreadsheet and ask it to flag accounts that moved more than a set percentage versus last period, then explain its method. Because it runs code on the file, you can ask for the exact rows it used. Only do this with client data if your firm has approved a business plan.

Project managers: convert a messy thread into a status update

Paste the email chain, name the audience (executive sponsor, vendor, team), and ask for decisions, owners, dates, and open risks in that order. Then ask what a skeptical sponsor would push back on, and answer it before you send.

Small-business owners: draft policies and hard replies

Ask for a first draft of a refund policy, a job posting, or a response to a harsh review, giving it your real constraints: state, budget, tone. Treat the draft as a starting point and have a professional review anything with legal weight.

Getting started

  1. Create a free account at chatgpt.com, open Settings, and review Data Controls; turn off model training if you will discuss anything sensitive.
  2. Fill in custom instructions with your role, industry, and how you like answers formatted (short, bulleted, assumptions listed).
  3. Run one real task from this week: paste a document and ask for a summary plus three questions you should ask its author.
  4. If it earns a place in your week, upgrade to Plus for higher limits and deep research, then create a Project for your most repeated workflow.

Alternatives to ChatGPT

Frequently asked questions

Is ChatGPT free to use?
Yes. The free tier gives you the main model with usage limits, plus search, file uploads, and voice within caps. When you hit a limit it switches to a lighter model or asks you to wait. Paid plans raise those caps and add deep research, agent mode, and more Project storage.
Is it safe to put work documents into ChatGPT?
It depends on your plan and your employer's policy. Personal accounts may have conversations used for training unless you opt out, and they carry no business agreement. Team and Enterprise plans exclude your data from training and add admin controls. Never paste confidential client, patient, or employee data into a consumer AI tool unless your organization has approved it; regulated work (HIPAA, attorney-client privilege, GLBA) needs explicit sign-off first.
How do I stop ChatGPT from making things up?
You cannot fully, but you can cut it down. Give it the source material instead of relying on its memory, turn on search for anything time-sensitive, ask it to quote the passage behind each claim, and tell it to say it does not know when the answer is not in the material. Then verify anything you will repeat to a client or a boss.
ChatGPT or Claude, which should I use?
Both handle everyday writing and analysis well. ChatGPT has the wider feature set (image generation, agent mode, custom GPTs); Claude is often preferred for long-document work and prose that sounds less generic. If your company runs on Microsoft 365, Copilot may be the practical choice because it lives inside the apps you already use.

Independent review. Pricing is described in words because plans change often; check the vendor's site.