# clm_70C3C02D2977

subject: OpenAI (/record/openai.md)  
predicate: policy_changed  
value: Under-18 Principles  
valid_from: 2025-12-18  
valid_to: null  
published: 2025-12-18  
recorded: 2026-11-03  
confidence: 0.70  
status: valid  
assertable: true  
superseded_by: null  
last_updated: 2026-11-04  
cite: AsOf. "OpenAI policy changed: Under-18 Principles", as of 2025-12-18. Claim clm_70C3C02D2977, https://asof.is/claim/clm_70C3C02D2977, accessed 2026-11-09. Source: https://openai.com/index/updating-model-spec-with-teen-protections.  
checked: 2026-11-04 · its source page states the value and the date (its publisher's feed entry for the page)  

> OpenAI is updating its Model Spec with new Under-18 Principles that define how ChatGPT should support teens with safe, age-appropriate guidance grounded in developmental science.

What https://openai.com/index/updating-model-spec-with-teen-protections says, word for word.

## Sources

- https://openai.com/index/updating-model-spec-with-teen-protections (primary, OpenAI, published 2025-12-18)

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AsOf is a temporal fact ledger: a structured, dated, sourced record of what is true and what changed, built for AI retrieval.