Many people do: a16z found that roughly 20% of weekly ChatGPT web users also use Gemini in the same week. A sensible pattern is one assistant you use every day and a free second one for checking: when an answer matters, ask the other the same question and look at where they disagree. Pay for two only if each does a job the other cannot, such as Gemini inside your Google apps and ChatGPT for images and voice. Moving is easier than it was. You can ask ChatGPT or Claude what it remembers about you, and Claude has a built-in import that turns that list into its own memories. Read the list first and cut anything you would rather not carry over.
On the AI map, 29 October 2026 AI assistants Frontier models
7 resources.
Usage data on who uses which assistant, including how many ChatGPT users also use Gemini each week and India's place as a top market.
Andreessen Horowitz (a16z) Mar 2026
Open a16z.com →Survey of which assistants US adults use, from ChatGPT and Gemini to Copilot, Meta AI, Grok and Claude, broken down by age.
Pew Research Center Jun 2026
Open pewresearch.org →Step-by-step import of what another assistant remembers about you, and how to export Claude's memory as a backup.
Anthropic (Claude Help Center) Oct 2026
Open support.claude.com →What ChatGPT remembers, where to review and correct it, and how to delete a memory rather than only the chat it came from.
OpenAI Help Center 2026
Open help.openai.com →How Gemini's memory works, who can use it, how to turn it off and how to correct what it has learned.
Google (Gemini Apps Help) Oct 2026
Open support.google.com →A Wharton professor's regular guide: any free model for low-stakes questions, ChatGPT or Claude for real work, and where Google, Copilot and voice fit.
Ethan Mollick (One Useful Thing) Jul 2026
Open oneusefulthing.org →A daily user of all five walks through what each one does best, chapter by chapter (the video carries a sponsored segment).
Paul J Lipsky Feb 2026
