How each assistant holds context
They differ in how much they read at once.
How much each reads at once
Past this, the start of the chat fades.
ChatGPT About 12 pages on Free, 40 on Plus Claude 500 pages or more on paid plans Gemini About 1,500 pages on Pro and Ultra Grok Not published for the app They all read attachments
All four read photos, PDFs, and spreadsheets you attach. Free plans allow fewer.
Your email and calendar
All four connect to Gmail, Google Calendar, and Google Drive. Claude and Grok offer it on every plan, Gemini with Keep Activity on, and ChatGPT by plan and region.
A saved place for facts
Save your business note and price list once, then start each chat inside it. Grok has Projects too.
ChatGPT Projects: chats, files, instructions Claude Projects: five on a free account Gemini Gems: instructions and files
Try it now
Make a project or Gem called Shop. Put your five-line business note in its instructions, and add your price list. Then paste the prompt below inside it.
Copy this prompt
Paste this into a new chat inside your project or Gem.
Using only my saved business note and price list, tell me our hours, our service area, and the price of our most common job. If any of those isn’t in what I saved, say so instead of guessing.
Now you know
Privacy: Your business note and price list are fine to save. Keep customer names, addresses, and numbers out of the project.