TL;DR: In the ChatGPT vs Gemini choice, ChatGPT is the better pick if you want one all-round assistant for writing, research, coding and everyday questions, and Gemini is the better pick if you live in Gmail, Docs and Android or want the most for your money. Both paid plans cost about the same: ChatGPT Plus is $20 a month and Google AI Pro is $19.99 (£19.99 and £18.99 in the UK). Google’s plan also includes 5 TB of storage, a 1 million token context window and family sharing, so it’s the better value on paper. On the free tiers, Gemini gives you more tools, while ChatGPT gives you unlimited everyday chats but may show ads in some countries.
Last updated: November 4, 2026. By Veer. Plans and prices checked on November 4, 2026 against ChatGPT’s pricing page, OpenAI’s Free tier FAQ, Gemini’s subscriptions page and Google One’s AI plans page. This is a researched comparison built from official plan pages and help docs, not a hands-on test.
ChatGPT and Gemini are now close enough in price and features that the “which is smarter” question matters less than it did a year ago. What separates them in 2026 is what each plan bundles, how well each fits the apps you already use, and how each company handles your chats. That’s what this comparison covers.
ChatGPT vs Gemini: the quick answer
Pick ChatGPT if you want the best single assistant, and pick Gemini if you’re already deep in Google’s apps. ChatGPT has the broader toolset on its $20 plan, including Codex for coding and scheduled tasks. Gemini’s $19.99 plan is the better bundle, with 5 TB of storage, YouTube Premium Lite and Gemini inside Gmail, Docs and Sheets.
Neither company publishes fixed message caps for its main paid plan, and both say limits can change. So the honest way to compare them is plan by plan.
| ChatGPT | Gemini | |
|---|---|---|
| Free model | GPT-5.6 Luna | Flash-Lite |
| Cheapest paid plan | Go: $8/mo (£6.99 on the UK App Store) | AI Plus: $4.99/mo (£4.49) |
| Main paid plan | Plus: $20/mo (£19.99 on the UK App Store) | AI Pro: $19.99/mo (£18.99) |
| Top model on the main plan | GPT-6.1 Sol | Gemini 4 Argon |
| Context window on the main plan | 256K tokens | 1 million tokens |
| Storage included | None | 5 TB (Pro), shared with up to five others |
| Annual billing | No (Go, Plus and Pro are monthly) | Yes, AI Pro is $199.99 a year |
| Ads | May appear on Free in some countries; Go may include ads | Google says Gemini chats aren’t used to show you ads |
Sources: ChatGPT pricing, OpenAI Help Center, Google One AI plans, Google One UK, Gemini Apps Privacy Hub. UK ChatGPT prices are in-app UK App Store prices including VAT, checked November 3, 2026.
Free tiers compared: ChatGPT Free vs Gemini free
Gemini’s free tier includes more tools, and ChatGPT’s free tier is better for long back-and-forth chats. Gemini free gives you image generation and editing, Deep Research, Gemini Live voice chats, Canvas and Gems with any Google account. ChatGPT Free gives you GPT-5.6 Luna with unlimited everyday text chats, plus web search, file uploads and image creation with their own limits.
OpenAI’s Free tier FAQ says free users get “unlimited everyday text chats, subject to abuse-prevention safeguards,” while uploads, image creation, voice and data analysis have separate caps. It also says “ads may appear in the Free tier in certain countries.”
Google’s free plan runs on its Flash-Lite model, and the subscriptions page lists Deep Research and image generation as free features. You also keep the standard 15 GB of Google storage. If you mostly want quick answers and the odd image, Gemini free is the more generous starting point. If you chat for hours, ChatGPT Free is less likely to cut you off on plain text.
Paid plans: ChatGPT Plus vs Google AI Pro
At $20 versus $19.99, Google AI Pro gives you more for the money, while ChatGPT Plus gives you more AI tools. If you’d pay for cloud storage anyway, Google’s plan is close to a free AI upgrade. If you only care about the assistant itself, ChatGPT Plus has the edge in coding and automation features.
ChatGPT Plus ($20 a month) adds OpenAI’s GPT-6 reasoning models, with GPT-6.1 Sol available on Plus but not on Free or Go. You also get expanded deep research, projects, scheduled tasks, expanded Codex for coding, ChatGPT Work on desktop, web and mobile, and early access to new features. OpenAI doesn’t offer annual billing for Plus.
Google AI Pro ($19.99 a month or $199.99 a year) adds Gemini 4 Argon, expanded access to Gemini 3.1 Pro and four times the free usage limits, per Google One. It also includes Gemini in Gmail, Docs and Sheets, Tasks in Gemini, 1,000 monthly Google Flow credits for video, 5 TB of storage, YouTube Premium Lite, and Google Home Premium Standard. Family members on the plan get the AI benefits at no extra cost.
Two catches on Google’s side. Some extras are regional: Chrome auto browse is listed for the US and India only, and asking your Gmail inbox for an AI Overview is US only, so UK buyers get a slightly smaller bundle. And Google’s plan pages still name several models at once (Argon, 3.1 Pro, 3 Pro in some Search features), which can make it hard to tell which model answered you.
For a three-way look that adds Claude, see our ChatGPT Plus vs Claude Pro vs Google AI Pro comparison.
Which is better for writing, research and long documents?
Gemini is the stronger choice for very long documents, and ChatGPT is the safer all-rounder for writing and research. Google AI Pro’s 1 million token context window is about four times the 256K tokens ChatGPT lists for Plus, so Gemini can hold far more of a long report, book or codebase in one go.
Google says Pro and Ultra users can upload up to 1,500 pages of documents and code repositories of up to 30,000 lines. OpenAI’s pricing page notes that the part of the window available for your own input is smaller than the total, because system instructions, memories and reasoning take up space too.
Both offer Deep Research, which browses many sources and writes a report. Gemini’s version is free in a limited form; ChatGPT’s is expanded on Plus. We haven’t run the two against each other, so we won’t claim one writes better prose. Vendor benchmarks change with every model release, and you can try both free tiers on your own work in an afternoon.
Which is better for images, video and coding?
Gemini covers more media types on its cheaper plans, while ChatGPT has the deeper coding tool on Plus. Every Google AI plan from AI Plus up includes video generation with Gemini Omni Flash, and image generation uses Google’s Nano Banana models. ChatGPT includes image creation on every tier, with “more complex and accurate image creation” on Plus and unlimited images on Pro.
For coding, ChatGPT Plus includes expanded Codex, OpenAI’s coding agent. Google AI Pro includes entry limits in Google Antigravity, its agent-based coding platform, plus $10 a month in Google Cloud credits and 200 Colab compute units. If you code every day, our Claude Code vs Codex and Cursor vs GitHub Copilot vs Claude Code pricing guides go deeper.
ChatGPT vs Gemini privacy: which uses your chats for training?
Both use your chats to improve their models by default, and both let you turn that off. The difference is the trade-off: turning off Gemini’s Keep Activity setting also disconnects Google Workspace apps from Gemini, while turning off ChatGPT’s training setting keeps your chat history.
On ChatGPT Free, Plus and Pro, OpenAI’s data controls page says “data sharing is enabled by default.” You can switch off “Improve the model for everyone” in Settings and keep your history. Temporary chats aren’t used for training and may be kept for up to 30 days for safety.
Google’s Gemini Apps Privacy Hub says that with Keep Activity on, your activity is used to train its models with help from human reviewers, and reviewed chats are kept for up to three years even if you delete them. Activity auto-deletes after 18 months by default. With Keep Activity off, chats are kept for 72 hours, but connected apps like Google Workspace stop working. Google also says Gemini chats aren’t used to show you ads.
| Privacy setting | ChatGPT | Gemini |
|---|---|---|
| Training on your chats by default | Yes (Free, Plus, Pro) | Yes, if Keep Activity is on |
| Opt-out keeps chat history | Yes | No, history stops saving |
| Temporary chats kept for | Up to 30 days | 72 hours |
| Human review | Not stated on the data controls page | Yes, reviewed chats kept up to 3 years |
Who should pick which?
Choose by the apps you already use and what you’d pay for anyway. That decides it for most people faster than any benchmark.
- You want one assistant for almost everything: ChatGPT Plus.
- You use Gmail, Docs, Android or a Pixel: Google AI Pro.
- You’d pay for cloud storage or YouTube Premium anyway: Google AI Pro.
- You work with very long documents: Google AI Pro, for the 1 million token window.
- You code with an AI agent: ChatGPT Plus for Codex, or compare Claude in our best AI subscription guide.
- You’re on a budget: start free with both. If you upgrade, Google AI Plus at $4.99 is cheaper than ChatGPT Go at $8.
Our verdict
ChatGPT wins for most people who want a single, capable assistant, and Gemini wins on value and Google integration. If you’re unsure, use both free tiers for a week on your real tasks, then pay for the one you kept opening. And if you also want cited web answers, read our Perplexity vs ChatGPT comparison before you subscribe.
FAQ
Is Gemini better than ChatGPT?
It depends on what you use it for. Gemini is the better value at $19.99 a month because Google AI Pro adds 5 TB of storage and a 1 million token context window. ChatGPT Plus at $20 a month is the stronger all-round assistant, with Codex for coding and scheduled tasks.
Is ChatGPT or Gemini better for free?
Gemini’s free tier includes more tools, including image generation, Deep Research, Gemini Live and Canvas. ChatGPT Free offers unlimited everyday text chats on GPT-5.6 Luna, but uploads, images and voice have separate limits, and ads may appear in some countries.
How much do ChatGPT Plus and Google AI Pro cost in the UK?
Google AI Pro costs £18.99 a month in the UK. ChatGPT Plus costs £19.99 a month through the UK App Store, VAT included, as of November 3, 2026.
Can I pay yearly for ChatGPT or Gemini?
Google AI Pro can be paid yearly at $199.99. OpenAI says it doesn’t offer annual billing for ChatGPT Go, Plus or Pro, so those are monthly only.
Do ChatGPT and Gemini train on my chats?
Yes, by default. You can turn off “Improve the model for everyone” in ChatGPT and keep your history. In Gemini, turning off Keep Activity stops training on future chats, but your history stops saving and some connected apps stop working.
Which has the bigger context window, ChatGPT or Gemini?
Gemini. Google AI Pro lists a 1 million token context window, while ChatGPT lists 256K tokens on Go and Plus and 400K on Pro.
Sources: ChatGPT pricing; OpenAI Help Center on the Free tier, Plus and data controls; Gemini subscriptions; Google One AI plans (US) and (UK); Gemini Apps Privacy Hub. All checked November 4, 2026, except UK App Store prices (November 3, 2026).
