# clm_67E3D4760B4C

subject: Claude (/record/claude.md)  
predicate: model_release  
value: Claude Haiku 4.5  
valid_from: 2025-10-15  
valid_to: null  
published: 2025-10-15  
recorded: 2026-10-31  
confidence: 0.70  
status: valid  
assertable: true  
superseded_by: null  
last_updated: 2026-10-31  
checked: 2026-10-31 · its source page states the value and the date  

> October 15, 2025 Claude Haiku 4.5 launch We released our fastest, most cost-efficient model – Claude Haiku 4.5.

What https://support.claude.com/en/articles/12138966-release-notes#2025-10-15 says, word for word.

## Sources

- https://support.claude.com/en/articles/12138966-release-notes#2025-10-15 (primary, Anthropic, published 2025-10-15)

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