# clm_89B49CCBD655

subject: Claude (/record/claude.md)  
predicate: feature_added  
value: model_context_window_exceeded  
valid_from: 2025-09-29  
valid_to: null  
published: 2025-09-29  
recorded: 2026-11-11  
confidence: 0.70  
status: valid  
assertable: true  
superseded_by: null  
last_updated: 2026-11-11  
cite: AsOf. "Claude feature added: model_context_window_exceeded", as of 2025-09-29. Claim clm_89B49CCBD655, https://asof.is/claim/clm_89B49CCBD655, accessed 2026-11-11. Source: https://platform.claude.com/docs/en/release-notes/overview#2025-09-29.  
checked: 2026-11-11 · its source page states the value and the date  

> We’ve introduced a new stop reason model_context_window_exceeded that allows you to request the maximum possible tokens without calculating input size.

What https://platform.claude.com/docs/en/release-notes/overview#2025-09-29 says, word for word.

## Sources

- https://platform.claude.com/docs/en/release-notes/overview#2025-09-29 (primary, Anthropic, published 2025-09-29)

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