# clm_DCC1C9B12E08

subject: Anthropic (/record/anthropic.md)  
predicate: policy_changed  
value: stop_reason: "refusal"  
valid_from: 2026-06-02  
valid_to: null  
published: 2026-06-02  
recorded: 2026-11-10  
confidence: 0.70  
status: valid  
assertable: true  
superseded_by: null  
last_updated: 2026-11-10  
cite: AsOf. "Anthropic policy changed: stop_reason: "refusal"", as of 2026-06-02. Claim clm_DCC1C9B12E08, https://asof.is/claim/clm_DCC1C9B12E08, accessed 2026-11-11. Source: https://platform.claude.com/docs/en/release-notes/overview#2026-06-02.  
checked: 2026-11-10 · its source page states the value and the date  

> On the Claude API, you are no longer billed for a request when it returns stop_reason: "refusal" without Claude having generated any output.

What https://platform.claude.com/docs/en/release-notes/overview#2026-06-02 says, word for word.

## Sources

- https://platform.claude.com/docs/en/release-notes/overview#2026-06-02 (primary, Anthropic, published 2026-06-02)

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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.