What you actually pay
ChatGPT Plus is $20 a month. OpenAI says it does not support yearly billing for Go, Plus or Pro, so there is no discount for committing. Google AI Pro is $19.99 a month, or $199.99 a year. The yearly price works out at about $16.67 a month, but you pay it all up front, and you cannot cancel part way through and get the rest back.
The Google plan is also a storage plan. AI Pro includes 5 TB of Google storage, and Google lists YouTube Premium Lite among the extras in the United States. If you already pay Google for storage, check whether AI Pro would replace that payment before you count it as an extra cost. We do not put a value on the extras, because they only matter if you would use them.
Neither company says on these pages whether US sales tax is included, so every total on this site is before tax.
Where the documented differences are
Long documents and uploads
Google documents a 1 million token context window for AI Pro and file uploads of up to 1,500 pages. OpenAI documents a 256K context for ChatGPT's reasoning models on Plus, and "expanded" uploads without a page figure. If you work with very long reports, Google's published limits are higher. How well either one uses a long document is a separate question that only testing answers.
Spreadsheets and sources
OpenAI lists data analysis on Plus, with interactive tables and charts, and web search on every ChatGPT plan. On the Google plan pages we checked, neither spreadsheet computation nor search answers with source links is described for Gemini. We mark both as not verified for Gemini, not as missing. If either matters to you, run our spreadsheet and source kits in both apps before deciding.
Google Workspace
AI Pro puts Gemini inside Gmail, Docs, Sheets and Vids, and adds Meet notes. ChatGPT works with Google Sheets, Excel, Word and PowerPoint through extensions, which are fully available on Plus. If you want help inside the Google apps you already use, Gemini is the documented choice.
Images and video
Both plans generate images. For video, Google includes 1,000 Flow credits a month on AI Pro. OpenAI discontinued the Sora web and app experiences on April 26, 2026, and lists no video generation on ChatGPT plans.
Coding and agents
Plus includes Codex, OpenAI's coding agent, with limited use of its top model and optional credits. AI Pro includes Jules with higher limits, plus Antigravity and AI Studio. For agents that use a browser, OpenAI documents the ChatGPT Work agent on desktop, web and mobile. Google documents Chrome auto browse in the US and India on AI Pro.
Privacy and ads
Both services use your chats to improve their models unless you turn it off. In ChatGPT, switch off "Improve the model for everyone" under Settings, Data controls. In Gemini, turn off Keep Activity. Google says chats are still kept for up to 72 hours. Turning training off says nothing about how long data is stored for other purposes, so read each privacy page if your work is confidential.
OpenAI says ads may appear on ChatGPT Free and Go, and Plus has no ads. We found no official statement about ads in the Gemini app, so that row stays not verified.
When the free tier is enough
Both free tiers include image generation, voice conversation and a deep research mode, which Google says may be unavailable on its free tier when demand is high. ChatGPT Free documents limited data analysis and web search, and may show ads. Gemini's free tier comes with 15 GB of Google storage, and Google describes its limits as compute-based, refreshing every five hours up to a weekly cap. If you use an assistant a few times a week, try the free tier of each for your real tasks before you subscribe.
Switching later
You can export your ChatGPT data from its settings, and your Gemini data through Google Takeout. An export is a copy of your history. Neither company documents importing the other's conversations, projects or memory, so moving means starting fresh. Plus is billed monthly, so you can stop at the end of any month. A yearly AI Pro plan saves money only if you keep it for the full year.
How this page was made
This comparison was written by the What the tech desk with AI assistance, from the facts in our data release. We have not yet run our test kits on these two plans, so nothing here is a claim about quality. When we run them, the results will appear with their dates, and the change will show in the change log.