All platforms
Does Anthropic train on what you type into Claude?
On consumer plans (Free, Pro, Max), Anthropic says your chats are used to improve models only when:
- You turn that setting on.
- A conversation is flagged for safety review.
- You opt in another way, such as a tester program.
What this means for marketers
The setting is yours to choose. Worth considering: leave training off for client work, and use commercial plans when the data is not yours to share.
Primary source Anthropic Privacy Center: is my data used for model training? (March 2026)
- Anthropic commercial terms (Claude for Work and API) (Living terms page)
Links checked September 25, 2026
How we check this. *Beep Boop Bop 🤖 Never ever, ever legal advice.