ChatGPT has more plans than most tools, and the names do not help: Go, Plus, three kinds of Pro, two kinds of Business seat. It looks like a menu you need a guide for. You don't. The plans sort into two groups, and once you see the split, the choice is quick.
Personal plans (Free, Go, Plus, Pro) are for one person. Moving up that ladder buys you more: more messages, stronger thinking, more of the advanced tools. Business plans (Business and Enterprise) are for organisations. They buy something else entirely: a shared workspace, admin control, and the promise that your chats are not used to train OpenAI's models.
That second group is the one this track assumes. If your company gives you ChatGPT Business, that is where your work belongs, and most of what follows describes it.
The plans, plainly
Free. Zero cost, limited use. You get the real thing, not a demo: chat, web search, a little file upload, image creation, and a taste of deep research and ChatGPT Work. Fine for trying it out. Ads may appear in some countries. Best for: a first look and the odd question.
Go. A low-cost plan, priced per country. More messages, uploads, and images than Free, plus scheduled tasks. It may show ads, and the stronger thinking levels stay out of reach. Best for: a light personal user on a budget.
Plus. 20 dollars a month. The everyday paid plan: the current flagship model with stronger thinking, expanded deep research and memory, Projects, Sites, and ChatGPT Work on desktop, web, and phone. Best for: one person using ChatGPT regularly through the week.
Pro. 100, 200, or 500 dollars a month, three tiers that differ mainly in how much you can use. Pro adds the heaviest reasoning ("Pro" level), longer Work and Codex sessions, and dots, the always-on agents (your first dot is included). It is the same ChatGPT, just a lot more of it. Best for: a power user who lives in it all day.
Business. For a team, minimum two seats. A Standard seat costs 25 dollars per person a month (20 paid yearly); a Premium seat 125 (100 yearly) and gives about five times the usage, with no five-hour limit, plus dots. You can mix both. Every seat gets ChatGPT, Work, and Codex, plus the shared workspace: one bill, admin roles, Skills, Space for shared pages, and connections to company apps. Workspace data is not used for training. Best for: any company that wants its people on ChatGPT properly.
Enterprise. Custom pricing, billed yearly. Everything in Business, plus what a large IT and security team asks for: deeper admin controls, compliance features, data residency options, and support. Dots are available as a beta if your admin turns them on. Best for: larger organisations that need security sign-off.
Personal or business: the line that matters
Here is the bit most people miss. On every personal plan, paid ones included, your chats can be used to train future models by default. You can switch that off ("Improve the model for everyone", under Data controls), but it is on until you do. Paying for Plus or Pro buys speed and features. It does not change who your data is for.
Business and Enterprise flip that default: workspace content is not used for training, it falls under a business agreement, and admins manage who has access. By default, admins cannot read your private chats either. That is why lesson 1.4 told you to use the business tool your company provides, not your own subscription. A client contract pasted into a personal account sits outside every agreement your company has.
So the first question is not "how much can I spend?" It is "is this work?" If yes, and your company has Business or Enterprise, use that.
So which one is you?
You have ChatGPT through work. Use it. Check whether you have a Standard or Premium seat (your admin knows), and come back to Premium only if the five-hour limit keeps stopping you.
Your company has nothing yet. Ask. Business starts at two seats, so it is a small step, and it gives your team business-grade data handling without a long procurement project. Until then, keep confidential material out of personal accounts.
You use it for yourself. Start on Free. Move to Plus when the limits start to bite. Go to Pro only when Plus genuinely runs out, not because a new tier was announced.
When is it worth moving up?
Move up when the plan you are on gets in your way, and not before. Hitting the Plus limit several times a week is a nudge toward Pro. Three colleagues sharing one login is a nudge toward Business. Your security officer asking where the data goes is a nudge toward Enterprise.
Everything else is noise. You do not need the top tier for good answers. The higher plans sell more usage and more control, not a smarter ChatGPT.
Try it
Answer three questions in one line each. Is what you will use ChatGPT for work? Does your company already have Business or Enterprise? How often will you use it: daily, or now and then?
Read your answers back. Work plus a company workspace means: use the workspace, done. Work but no workspace means: ask for one, and meanwhile keep sensitive material out. Personal use means: Free, then Plus when it bites. Write down the plan you land on and your one-line reason.
(General exercise. Role and industry versions come once accounts are in.)