OpenAI’s ChatGPT, Anthropic’s Claude and Google’s Gemini are the three general-purpose AI assistants most people choose between. All three can write, summarize, analyze files, search the web, write code and hold natural conversations. On many everyday tasks, the differences are smaller than online arguments suggest.
So instead of declaring a winner, this guide lays out what each one costs, how their plans and privacy settings differ, and the factors that actually decide which assistant suits you. Every price and policy below links to the company’s own page.
Updated September 2026: we added a full price comparison, a privacy comparison and an FAQ, with links to official sources. Prices and policies checked on 26 September 2026 against each company’s official pages. US prices, before tax.
The short version
| If you mainly want… | Consider |
|---|---|
| The broadest set of built-in features in one app | ChatGPT |
| Long documents, careful writing and coding help | Claude |
| Tight integration with Gmail, Docs, Chrome and Android | Gemini |
| The cheapest paid step up | Gemini (Google AI Plus) or ChatGPT Go |
| No ads on a free plan | Claude or Gemini |
| A free option for occasional use | Any of the three |
What each plan costs
| Tier | ChatGPT | Claude | Gemini |
|---|---|---|---|
| Free | $0 (ads may appear in the US) | $0 | $0 |
| Entry paid | Go: $8/month (ads may appear) | None | Google AI Plus: $4.99/month |
| Standard paid | Plus: $20/month | Pro: $20/month, or $17/month billed annually | Google AI Pro: $19.99/month |
| Heavy use | Pro: $100/month (5x Plus usage) or $200/month (20x)* | Max: from $100/month (5x or 20x Pro usage) | Google AI Ultra: from $99.99/month, or $199.99 |
| Teams | Business: $25/seat/month, or $20 billed annually | Team: $25/seat/month, or $20 billed annually | Through Google Workspace plans |
*OpenAI says new sign-ups and upgrades to the $200 Pro plan were paused as of 10 September 2026; existing subscribers keep it.
Two things the headline prices hide. Google’s paid plans bundle other services: Google AI Pro includes 5 TB of cloud storage and YouTube Premium Lite, so it may replace a storage plan you already pay for. And ChatGPT’s two cheapest tiers carry advertising, which OpenAI says does not influence its answers.
ChatGPT: the all-rounder
ChatGPT tends to offer the widest range of built-in features: voice conversations, image generation, file analysis, web search, deep research, custom assistants and integrations with other apps. If you want one app that does a bit of everything, it is a sensible default.
The trade-offs: the interface can feel crowded, the range of models and modes can confuse new users, and since February 2026 OpenAI has been showing ads to Free and Go users in the US. Plus and higher plans are ad-free. The $8 Go tier is a cheap way to get far higher limits than Free if ads don’t bother you.
Claude: strong on writing and long documents
Claude has built a reputation for clear, natural writing, careful handling of long documents and strong coding help. Many people who draft reports, analyze contracts or work through large files find its style easier to work with. Its Projects feature keeps reference files and instructions together for ongoing work, and the Pro plan also includes Claude Code, Anthropic’s coding tool, plus extensions for Chrome and Microsoft 365.
Claude has no cheap in-between tier: you go from Free straight to $20 Pro, or $17 a month billed annually. It has also historically offered fewer consumer extras, such as image generation, than ChatGPT, so it suits people who care most about the quality of text and analysis.
Gemini: best if you live in Google’s world
Gemini’s biggest advantage is integration. If your email, documents, calendar and phone are all Google, Gemini can work across them in ways the others cannot easily match. From the Plus plan upward, Gemini works inside Gmail and other Google apps, and the Pro plan adds Gemini in Chrome. Gemini is also built into Android, so you may already have access without installing anything.
Google also has the widest price ladder: a $4.99 Plus tier for light users, and two Ultra tiers that Google restructured at I/O in May 2026 into $100 and $200 options.
Privacy and data controls
This is worth five minutes before you commit, because the defaults differ:
| ChatGPT | Claude | Gemini | |
|---|---|---|---|
| Can consumer chats be used for training? | Yes, unless you turn it off | Only if you allow it | Yes, while Keep Activity is on |
| Setting to change | Improve the model for everyone (Settings, Data controls) | Model training choice in Privacy Settings | Keep Activity for Gemini Apps |
| Retention notes | Temporary chats are not used for training | Kept 5 years if you allow training, 30 days if not | Some chats reviewed by people; kept 72 hours when the setting is off |
| Business plans | Not used for training by default | Not covered by the consumer policy (commercial terms) | Covered by Workspace terms |
If you use AI for work involving client or company data, a business plan approved by your employer is usually the right choice. Our guide to how large language models work explains why training data policies matter, and our chatbot privacy guide walks through the settings step by step.
Our advice Try the free tier of two assistants with the same three real tasks from your week. Pick the one whose answers you would have been happiest to send or use. That test tells you more than any benchmark chart.
How to run a fair comparison
- Choose tasks you actually do: an email, a document summary, a planning question.
- Use the same prompt in each assistant. Our prompting guide can help you write a good one.
- Judge accuracy first, then usefulness, then style. Our guide to spotting AI hallucinations shows what to check.
- Note how much editing each answer needed.
- Consider the ecosystem: which apps do you already use every day?
- Check the privacy defaults in the table above before pasting anything sensitive.
Frequently asked questions
Which is best for free users?
All three free plans handle everyday writing and questions. Claude and Gemini have no ads on their free plans; ChatGPT’s free plan may show ads in the US. Gemini’s free plan includes Deep Research and image generation, and ChatGPT’s free plan has the broadest mix of tools.
Is it worth paying for more than one?
Usually not. Most people are better served by one paid plan plus the free tier of a second assistant for comparison. Our guide to free vs paid AI plans explains when an upgrade pays off.
Which is best for coding?
All three are capable. Claude’s Pro plan includes Claude Code, ChatGPT’s paid plans include OpenAI’s coding tools, and Google’s Pro plan includes higher limits for its Jules coding agent. See our guide to AI coding assistants.
Do the prices change often?
Yes. All three companies changed their plans during 2026. Check the linked official pricing pages before you subscribe.
Choosing your assistant
There is no single best AI assistant, only the best fit. ChatGPT is the broadest, Claude is a favorite for writing-heavy and document-heavy work, and Gemini makes the most sense for committed Google users, with the cheapest paid entry point. Standard paid plans cost about $20 a month across all three, so decide on fit and privacy defaults, not price. Many professionals keep more than one, and that is a perfectly reasonable choice.
Sources
- What is ChatGPT Plus?, OpenAI Help Center
- Introducing ChatGPT Go, OpenAI
- About ChatGPT Pro tiers, OpenAI Help Center
- Business pricing, OpenAI
- Ads in ChatGPT, OpenAI Help Center
- Data controls FAQ, OpenAI Help Center
- Plans & Pricing, Claude by Anthropic
- Updates to Consumer Terms and Privacy Policy, Anthropic, August 2025
- Google AI plans, Google
- Google AI subscription updates from Google I/O 2026, Google, May 2026
- Gemini Apps Privacy Hub, Google
