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How we compared
Compared on published specs and prices. This article compares the official plans, limits, context windows and privacy settings published by OpenAI and Google, checked on October 31, 2026. We did not run a scored benchmark of answer quality for this comparison, because results change with every model update and depend heavily on the prompt. For hands-on coding comparisons, see ChatGPT vs Claude for coding.
ChatGPT vs Gemini at a glance
| ChatGPT | Gemini | |
|---|---|---|
| Free plan | Unlimited text chats with GPT-6; limited uploads, images, deep research and Codex | Flash-Lite model, Deep Research, Gemini Live, Canvas, Gems, 15 GB storage |
| Low-cost plan | Go (price not shown as text on the pricing page; may include ads) | Google AI Plus: $4.99/mo, Flash model, 2x free limits, 400 GB |
| Main paid plan | Plus: $20/mo, billed monthly (no annual plan) | Google AI Pro: $19.99/mo, 4x free limits, 5 TB |
| Top plan | Pro (price not shown as text on the pricing page) | Google AI Ultra: $99.99 (5x Pro) or $199.99/mo (20x Pro) |
| Largest context window | Reasoning: 256K (Go/Plus), 400K (Pro) | 1M tokens on AI Pro |
| Works inside | ChatGPT apps and web; connectors to other services | Gmail, Docs and other Google apps on AI Pro |
| Training on your chats | On by default for personal plans; can be turned off | Activity settings control saving; a subset of chats is reviewed by humans |
Official pricing pages and help articles, checked October 31, 2026. Prices in U.S. dollars before tax.
Prices compared
| Plan | Price | Billing | What you get |
|---|---|---|---|
| ChatGPT Free | Free | Free | Unlimited everyday text chats, limited Codex and uploads |
| ChatGPT Plus | $20.00/mo | Monthly only (no annual plan) | Advanced reasoning models, expanded Codex usage, projects and custom GPTs |
| Gemini (free) | Free | Free | Flash-Lite model, Deep Research, Gemini Live, 15 GB storage |
| Google AI Plus | $4.99/mo | Monthly | Flash model, double the free usage limits, 400 GB storage |
| Google AI Pro | $19.99/mo | Monthly | Gemini 4 Argon, 4x free usage limits, Gemini in Gmail and Docs, 5 TB storage |
| Google AI Ultra (5x) | $99.99/mo | Monthly | 5x AI Pro usage limits, 20 TB storage, YouTube Premium |
| Google AI Ultra (20x) | $199.99/mo | Monthly | 20x AI Pro usage limits, 20 TB storage, YouTube Premium |
Official list prices checked Oct 31, 2026, before tax. Sources: chatgpt.com, help.openai.com, gemini.google, one.google.com.
OpenAI’s pricing page shows ChatGPT Go and Pro, but their prices were not printed as text when we checked, so we have left them out rather than guess. Google’s plans are monthly, can be cancelled at any time and do not give partial refunds. Google AI plans are for ages 18 and up.
At the main tier, the cost difference is one cent: $20 for ChatGPT Plus vs $19.99 for Google AI Pro. The real difference is what comes bundled. Google AI Pro includes 5 TB of Google storage, Gemini in Gmail and Docs, 1,000 monthly AI credits for Google’s Flow video tool and YouTube Premium Lite. If you already pay for Google storage, that bundle can make Gemini the cheaper choice overall.
Usage limits
Both services cap how much you can use the best models, and both describe limits as multiples rather than fixed message counts.
- Gemini: AI Plus gives about 2x the free limits, AI Pro about 4x, and Ultra 5x or 20x the Pro limits. Google says limits refresh every 5 hours, up to a weekly cap.
- ChatGPT: Free has unlimited everyday text chats but limited uploads, image generation, deep research and Codex. Go and Plus raise those limits, and Pro offers three usage tiers with OpenAI’s top reasoning model.
Neither company guarantees a specific number of messages, so if you are a heavy user, expect to hit limits occasionally on either one at the $20 tier.
Context window and file uploads
The context window is how much text the model can consider at once, measured in tokens (roughly three-quarters of a word each).
| Plan | Context window |
|---|---|
| ChatGPT Free (Instant) | 27K tokens |
| ChatGPT Go and Plus | 54K (Instant), 256K (reasoning) |
| ChatGPT Pro | 128K (Instant), 400K (reasoning) |
| Google AI Pro | 1M tokens, uploads up to 1,500 pages or 30,000 lines of code |
OpenAI and Google help and plan pages, checked October 31, 2026.
For very long documents, such as a full contract set, a book or a large codebase, Gemini’s 1 million token window on AI Pro is a clear advantage. For everyday questions and short documents, both are more than enough.
Features and integrations
ChatGPT
ChatGPT is built around the chat app itself: projects to organize work, custom GPTs, image generation, deep research, voice and Codex for coding tasks. Higher plans add agent features and, on Pro, monthly API credits. It works the same way whatever email or office suite you use.
Gemini
Gemini’s strength is Google’s ecosystem. The free plan already includes Deep Research, Gemini Live (voice), Canvas and Gems (custom assistants). AI Pro adds Gemini directly inside Gmail and Docs, so you can draft, summarize and search without copying text into a separate chat. If your work already runs on Google Workspace, that saves time every day.
Privacy and data controls
| ChatGPT (personal plans) | Gemini (personal accounts) | |
|---|---|---|
| Used to improve models | On by default (“Improve the model for everyone”); you can turn it off | Depends on Activity settings; a subset of chats is reviewed by people |
| Temporary or unsaved chats | Temporary chats are not used for training and are kept up to 30 days | With Keep Activity off or temporary chats, chats are still kept up to 72 hours, not used for training |
| Retention | Saved chats stay in your history until you delete them | Auto-delete defaults to 18 months (3, 36 months or never also available); human-reviewed chats kept up to 3 years |
| Business plans | Business, Enterprise and API data not used for training by default | Workspace accounts follow separate terms |
OpenAI and Google privacy help pages, checked October 31, 2026.
If privacy matters most, turn off model training in ChatGPT’s data controls, or turn off Keep Activity in Gemini, and avoid pasting confidential information into either consumer app. For sensitive work, use a business plan or the API, which have stricter default terms. Our ChatGPT vs DeepSeek comparison covers a third option with different data-location rules.
Pros and cons
ChatGPT
What we like
- Unlimited everyday text chats on the free plan
- Strong set of tools: projects, custom GPTs, deep research, Codex
- Works the same regardless of your email or office suite
- Training can be turned off in settings
What could be better
- Plus is monthly only, with no annual discount
- Go and Pro prices not printed on the pricing page
- Smaller context window than Gemini AI Pro
Gemini
What we like
- 1M token context on AI Pro
- Built into Gmail and Docs
- 5 TB storage and other Google extras included in AI Pro
- Cheap $4.99 AI Plus tier
What could be better
- Best value only if you use Google apps
- Some chats are reviewed by humans and kept up to 3 years
- Limits described as multiples, not fixed counts
Which should you choose?
- You want one strong general assistant: ChatGPT, free or Plus.
- You use Gmail, Docs and Drive every day: Gemini with Google AI Pro.
- You work with very long documents: Gemini AI Pro, for the 1M token context.
- You want the cheapest paid upgrade: Google AI Plus at $4.99.
- You mainly write code: compare ChatGPT Plus vs Claude Pro and ChatGPT vs Claude for coding.
- You are building an app: compare API prices in AI API pricing and estimate costs with the AI API cost calculator.
See ChatGPT plansOfficial site
See Gemini plansOfficial site
Frequently asked questions
It depends on how you work. ChatGPT is the stronger stand-alone assistant with a broad set of tools. Gemini is the better fit if you use Gmail, Docs and Drive, and its AI Pro plan offers a 1 million token context window.Is ChatGPT or Gemini better?
At the main tier, they cost almost the same: Google AI Pro is $19.99 a month and ChatGPT Plus is $20. Google also offers AI Plus at $4.99 a month, and AI Pro includes 5 TB of storage, which can make it cheaper overall if you already pay for Google storage.Is Gemini cheaper than ChatGPT?
Yes. ChatGPT’s free plan includes unlimited everyday text chats, with limits on uploads, images and advanced tools. Gemini’s free plan includes the Flash-Lite model, Deep Research, Gemini Live and 15 GB of storage.Can I use ChatGPT and Gemini for free?
ChatGPT personal plans use chats to improve models by default, and you can turn this off in data controls. Gemini’s use depends on your Activity settings, and Google says a subset of chats is reviewed by people and kept up to three years.Does ChatGPT or Gemini use my chats for training?
Gemini on Google AI Pro, with up to 1 million tokens. ChatGPT’s largest reasoning context is 256K tokens on Go and Plus and 400K on Pro.Which has the bigger context window?
Sources
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