Claude conversations are stored indefinitely while your account is active. Deleted conversations are removed within 30 days. API inputs and outputs are retained for a limited abuse monitoring window, with zero retention available for qualifying commercial use.
Short answer
Claude conversations are stored indefinitely while your account is active. Deleted conversations are removed within 30 days. API inputs and outputs are retained for a limited abuse monitoring window, with zero retention available for qualifying commercial use.
Anthropic publishes clearer retention documentation than most of the field, which makes this easier to answer than the equivalent question for other assistants.
The periods
| Data | Retention |
|---|---|
| Conversations | Indefinite while the account is active |
| Deleted conversations | Removed within 30 days |
| Projects | Deleted with their conversations |
| Flagged content | Retained longer for trust and safety review |
| API traffic | Limited abuse monitoring window, zero retention available |
| Closed account | Purged, subject to legal obligations |
Nothing expires on its own
As with every assistant, a conversation you never touch again stays forever. There is no rolling deletion, no archive tier, no automatic pruning after a year. Retention on a personal account is whatever your own deletion habits are.
That is fine until it is not: an account you lose access to takes the whole history with it, and a change to Anthropic's terms applies to everything already stored.
Projects complicate deletion
Claude Projects hold conversations, instructions, and uploaded knowledge together. Deleting a project deletes its conversations. People lose work this way while tidying, because the project feels like a folder and folders usually do not destroy their contents in other software.
Export before restructuring projects, not after.
Holding your own archive
Settings, Privacy, Export Data starts the process, and Anthropic emails a link when the archive is built. Expect to wait; it is generally slower than OpenAI's export.
The archive is JSON. Converting it into per conversation Markdown or PDF files makes it searchable with tools you already use and readable without any dependency on Anthropic. ChatExports handles Claude's format directly and runs entirely in the browser, so the conversation content is never uploaded during conversion.
Once that local folder exists, retention policy becomes a background detail rather than something to worry about.
Frequently asked questions
Can I set a custom retention period for Claude?
Not on consumer plans. Custom retention and zero data retention are enterprise and API level arrangements.
Does deleting a Claude project delete the conversations inside it?
Yes. Project deletion removes the conversations it contains, so export anything you need first.
Are Claude conversations encrypted?
They are encrypted in transit and at rest. That protects against interception, not against access by the provider itself.
How long does a Claude data export take to arrive?
Usually a few hours, though it can be longer for large accounts. Anthropic emails a download link when it is ready.