Pick Gemini if your work already lives in Google's apps, or if you regularly feed in inputs so large they have to stay in one context. Pick ChatGPT if you want the stronger standalone assistant and are not tied to a Google account.
The prices line up almost exactly: ChatGPT Plus is $20 a month, Google AI Pro is $19.99. The differences that matter are where the assistant sits and how much it can hold at once. Gemini runs inside Gmail, Docs, Sheets and Meet, and Pro-class models take very large inputs in a single pass. ChatGPT is a separate app you open, with broader third-party connectors and a more developed voice and image side.
If your team already pays for Workspace, start with Gemini. If you pay for AI out of your own pocket and use a mix of tools, start with ChatGPT.
| Dimension | ChatGPT | Gemini |
|---|---|---|
| Free tier | Chat with the newest model under daily caps; features like image generation and deep research limited | Flash-Lite-class models for free users since the October 2026 change; Pro-class models need Google AI Pro |
| Pricing | Plus $20/month; higher tiers on the official pricing page | Google AI Pro $19.99/month; the top tier is listed on the official pricing page |
| Long documents | Upload and summarise, but very large inputs are better split into sections | Up to 1M tokens of context on Pro-class models, so a whole codebase or a year of tickets can go in at once |
| Coding | Strong at writing and debugging code in chat, including running snippets; no editor integration | Competent at code in chat, and better integrated with Google's editor and CLI tooling; less often the primary coding tool |
| Web/research | Browsing plus search-style answers with links, and the larger connector ecosystem | Grounded in Google Search by default; deep research produces cited multi-page reports |
| Best for | Standalone use: images, voice, third-party tools, mixed tasks | Workspace users, very large inputs, search-grounded answers |
Choose ChatGPT when you want one app that does a bit of everything and does not care which browser or mail provider you use. The image side is the practical difference: mockups, diagrams, and edited screenshots are a normal part of the workflow rather than an experiment. Voice mode is the other one, and it is the feature people end up using in the car or while walking, where a Google-integrated assistant is no help.
Connectors matter if your data lives outside Google. ChatGPT has the wider catalogue of third-party integrations, so pointing it at a repository, a Notion workspace, or a ticketing system is usually a matter of enabling something. New tools and experiments also tend to land here first, which suits people who like trying things before they are polished.
The tradeoff is context. Very large inputs get awkward, and you will spend more time splitting documents and re-stating constraints than you would on a 1M-token window.
Choose Gemini when the answer needs to land where the work already is. Asking it to summarise a thread, draft a Doc from a Sheet, or pull numbers out of Gmail saves the copy-paste step entirely, and that step is where most of the friction in AI assistants actually lives.
The context window is the second reason. A 1M-token window on Pro-class models means you can drop in an entire specification set, a long log, or a whole small codebase and ask one question instead of twenty. It also changes how you prompt: instead of compressing a spec to fit, you attach it and ask about clause 14, which removes a dozen chances to lose the detail that mattered.
Understand the free tier before you commit. Free users were moved onto Flash-Lite-class models, so the free experience is a lighter model with tighter limits. That is fine for testing the interface and poor for judging what the paid plan feels like. If your evaluation matters, spend one month on Google AI Pro first.
The overlap here is smaller than it looks, because the two are used in different places. Gemini earns its keep inside Workspace while you are already writing a document; ChatGPT earns its keep when you open a tab to think something through. Running both is common in teams that use Google Workspace and also want a general assistant, usually because the company buys one and the engineers buy the other.
For an individual, paying twice is rarely justified. Pick the one attached to the apps you use for eight hours a day, keep the other on a free account for the occasional image or second opinion, and revisit when either vendor changes what the free tier includes. Prices have been stable; the free tiers have not been.
Gemini's advantage is provenance — answers arrive with links you can open, and the Google account plumbing means Docs and Gmail are already in reach. ChatGPT's advantage is breadth of tools and a more forgiving conversational style. Pick Gemini when you need to cite, ChatGPT when you need to build.
| Free tier | Yes | Yes |
|---|---|---|
| Checked price | Free $0; Go $8/mo; Plus $20/mo; Pro $100 / $200 / $500/mo; Business $20/seat/mo billed annually ($25 monthly, 2 seats minimum) (checked 2026-10-29) | Google AI Pro $19.99/mo ($199.99/yr); Google AI Ultra $99.99/mo; Google AI Plus $7.99/mo (third-party figure) (checked 2026-10-29) |
| Context window | 1,050,000 tokens on GPT-6 Astra (922K max input, 128K max output); GPT-6.1 Sol inside ChatGPT Work defaults to 500K (checked 2026-10-29) | 1M tokens (Gemini 4 Argon unified context; Pro models take 1M input and 64K output) (checked 2026-10-29) |
| Where it breaks | Blocked in mainland China without a proxy or VPN | Plan names get renamed often enough to be hard to track |
Prices and limits above were read from each vendor's own page on 2026-10-29; they change without notice, so treat them as the shape of the deal rather than a quote. The practical way to choose: run one real task through both free tiers today — one document you actually care about — and keep whichever needed fewer corrections.
Both. There is a free tier, but since October 2026 free users mostly get Flash-Lite-class models. Pro-class models, deeper research, and the Workspace integration sit behind Google AI Pro at $19.99 a month.
Gemini, by a wide margin, because Pro-class models accept up to 1M tokens in one request. ChatGPT can read long files but you get better answers working in sections. For a 300-page input that must stay whole, Gemini is the practical choice.
No. You can use it as a standalone chat app with a normal Google account. The Workspace integration, which is the main reason to pick it over ChatGPT, only pays off if your mail and documents are already there.