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Scope change

Claude.ai changed what its terms of service say

Claude.ai (Anthropic) added use of Materials “to develop other products and services, including training our models,” “unless you opt out of training through your account settings.”

When
Recorded between and (no capture in between)
Document
Terms of Service
Evidence
Capture with the new text · last capture with the old text
Vendor
All Claude.ai plans and changes
Decided by
Three independent AI readers agreed: Claude (Anthropic), GPT (OpenAI), Gemini (Google). How that works.
Cite
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What changed

Our use of Materials. We may use Materials to provide, maintain, and improve the Services,Services and to develop other products and services, including training our models, unless you opt out of training through your account settings. Even if you opt out, we will use Materials for model training when: (1) you provide Feedback to us regarding any Materials, or (2) your Materials are flagged for safety review to improve our ability to detect harmful content, enforce our policies, or advance our safety research.

Removed Added. Only the sentences about training are shown, not the whole document.

Before

In force from

Our use of Materials. We may use Materials to provide, maintain, and improve the Services, including training our models, unless you opt out of training through your account settings. Even if you opt out, we will use Materials for model training when: (1) you provide Feedback to us regarding any Materials, or (2) your Materials are flagged for safety review to improve our ability to detect harmful content, enforce our policies, or advance our safety research.

After

In force from

Our use of Materials. We may use Materials to provide, maintain, and improve the Services and to develop other products and services, including training our models, unless you opt out of training through your account settings. Even if you opt out, we will use Materials for model training when: (1) you provide Feedback to us regarding any Materials, or (2) your Materials are flagged for safety review to improve our ability to detect harmful content, enforce our policies, or advance our safety research.

Cite this change

Trained On, "Claude.ai changed what its terms of service say", first recorded 28 Nov 2025, https://trainedon.me/changes/2025-11-28-claude-ai-terms-of-service. Derived from Open Terms Archive, ODC-By 1.0.

This address is permanent. Citing the whole record, and the data.

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