AI Basics
AI Privacy Explained: What Happens to What You Type
Before pasting sensitive information into an AI tool, understand how your data may be used, stored and retained.
The question that matters: training vs. storage vs. retention
These are three separate things, and providers handle each differently:
- Training use — whether your conversations may be used to improve future versions of the model.
- Storage — whether your conversations are stored at all, and for how long.
- Retention/deletion — whether and how you can delete your data, and how long deletion actually takes to take effect.
| Concept | What it actually controls | Where to check it |
|---|---|---|
| Training use | Whether your conversations may improve future model versions | The tool's privacy/data-controls settings, usually in your account preferences |
| Storage | Whether conversations are kept at all, and for how long | The tool's privacy policy — retention periods vary by provider and plan |
| Retention/deletion | Whether you can delete data, and how long deletion takes to fully apply | The tool's data-deletion settings or a support request, for enterprise plans |
Check the settings, not just assumptions
Most major consumer AI chat products (ChatGPT, Claude, Gemini) offer a setting to opt out of having your conversations used for model training, though the exact mechanism and defaults differ and change over time — check the current settings in the tool you're using rather than relying on general assumptions. Business/enterprise tiers of these same products typically come with stronger data-handling guarantees (including not training on your data by default) as part of the paid offering.
A simple rule for sensitive information
Treat any AI chat input as you would an email to a third-party vendor: don't paste information you wouldn't be comfortable a vendor's staff or systems processing, unless you've specifically confirmed the tool's business-tier data handling terms cover your situation. This applies to things like unreleased business plans, client personal data, credentials, and health or financial information.
Where to actually check
Each tool's own privacy policy and (for business use) Data Processing Agreement are the authoritative source — not general articles like this one, since terms change. Every tool page on this site links to the provider's own site so you can review their current terms directly.
Frequently asked questions
- Does using the free tier mean my data is definitely used for training?
- Policies vary by provider and change over time, and many free tiers now offer an opt-out. Check the specific tool's current privacy settings rather than assuming.
- Are business/enterprise plans automatically safer for sensitive data?
- They typically come with stronger contractual data-handling commitments (like a Data Processing Agreement), but 'business tier' isn't a guarantee by itself — read the specific terms for your plan rather than assuming a paid tier covers your exact use case.
- Can I delete data I've already sent to an AI tool?
- Most major providers offer some form of chat history deletion or data-deletion request, but retention and deletion policies differ — check the specific tool's privacy settings or policy page for what's actually possible and how long it takes to take effect.