How to Stop Claude (Anthropic) from Training on Your Data in 2026
What you need to know first
Separate actions: opt out of model training (Privacy Settings toggle), use Incognito mode (never trained, not saved), delete individual chats or your whole account.
Step-by-step: delete your data from Anthropic Claude
- Step 1: Sign in at claude.ai (Free, Pro, or Max)
- Step 2: Click your profile/account icon > Settings
- Step 3: Open Privacy Settings
- Step 4: Find 'Help improve Claude' (model-training toggle)
- Step 5: Toggle it OFF and save
On mobile
- Open Claude app > profile/menu > Settings
- Open Privacy Settings
- Turn off 'Help improve Claude'
Opt out of AI training
claude.ai > Settings > Privacy Settings > turn off 'Help improve Claude'. Default is ON for consumer (Free/Pro/Max) accounts since the Oct 8, 2025 enforcement change. Incognito mode is never used for training even if the toggle is on. Claude for Work/Enterprise/Education/Gov and the API are never trained on by default.
Separate data request
Anthropic Privacy Center (privacy.claude.com) for access/deletion/portability; EU users have full GDPR rights
Key gotchas
- Training is ON by default for consumer accounts — opt out manually
- Opening an OLD conversation after the policy change can make it eligible for training
- Training-on accounts have 5-year retention (vs 30 days opted out)
- Safety-flagged conversations are an opt-out exception
What this doesn't cover
Anthropic does not 'unlearn' data already incorporated into a model; the safety-flag carve-out means flagged chats may still be used regardless of your setting; broker-held data is separate.
Opting out of Claude training limits future model exposure, but can't remove your personal data from the broker ecosystem that aggregates and sells it.
See what personal data is exposed about you beyond Anthropic Claude.
Run a free scan →Frequently asked questions
Does Anthropic Claude delete my data immediately?
Can I opt out of Anthropic Claude using my data for training?
Does deleting my Anthropic Claude account remove my data from the internet?
What are common mistakes when deleting Anthropic Claude data?
Sources
- Privacy Settings toggle, opt-out not retroactive, safety-flag carve-out
- Oct 8 2025 enforcement, 5-year retention vs 30-day default, deleted chats excluded
Steps and URLs reflect the platform documentation as of the date above. Platforms may change their settings layout at any time. This guide is informational and not affiliated with Anthropic.