Can you stop AI companies training on your chats?
Short answer
Yes, in settings. Claude and ChatGPT let you opt out of training; with Gemini you turn off Keep Activity or use temporary chats.
Which products can do it?
- OpenAI ChatGPTYes
OpenAI may use conversations to improve its models; you can opt out at any time in Data Controls.
Good to know: Opt-out, not opt-in.
- Anthropic ClaudeYes
Anthropic lists model training as opt-out on Claude's Free, Pro and Max plans.
Good to know: Opt-out means it's on until you turn it off.
- Google GeminiYes
With Keep Activity off or in temporary chats, Google doesn't use your future chats to train its models, unless you send feedback.
Good to know: Chats are still kept 72 hours. With Keep Activity on, human reviewers may see chats; reviewed data is kept 3 years.
Why it matters
People share personal and work information with chatbots and want to know where it goes.
Not proven yet
How opt-outs are enforced; these are company policies, not independent audits.
Guide
Do Claude, ChatGPT and Gemini train on your chats? How to opt outWhat each company says it does with your conversations, how long they're kept, and the setting that stops training.How we know (3 sources)
Gemini Apps Privacy Hub (last updated Oct 19, 2026): with Keep Activity on, Google uses activity to improve services, including training generative AI, with help from human reviewers; reviewed data is disconnected from the account and kept 3 years. With Keep Activity off or in temporary chats, chats are kept 72 hours and not used to train models unless you send feedback.
Read the sourceClaude plans as listed on Oct 22, 2026: Free ($0: chat, web search, file creation and code execution, memory, connectors, Artifacts); Pro ($20/month, $17/month billed annually: more usage, Claude Code, Research, Projects, Opus models, Claude in Chrome and Microsoft 365); Max (from $100/month: 5x or 20x Pro usage, plus $100-$200 in monthly API credits). Model training is opt-out on all individual plans. Usage limits reset in five-hour windows plus weekly caps on paid plans.
Read the sourceHelp article (read Oct 22, 2026): ChatGPT Plus is $20/month, billed monthly, no annual plan. Adds priority access, higher limits, reasoning models, voice, image generation, file analysis and deep research where available. API usage is billed separately. OpenAI may use conversations to improve models; you can opt out in Data Controls.
Read the source