# clm_50F23B443136

subject: Claude (/record/claude.md)  
predicate: default_model  
value: [Claude Sonnet 4.6](/record/claude-sonnet-4-6.md)  
valid_from: 2026-02-17  
valid_to: 2026-06-30  
published: 2026-02-17  
recorded: 2026-11-04  
confidence: 0.95  
status: superseded  
assertable: true  
superseded_by: clm_0DC1F7EBBD47  
last_updated: 2026-11-04  
checked: 2026-11-04 · its source page states the value and the date  

> For those on our Free and Pro plans , Claude Sonnet 4.6 is now the default model in claude.ai and Claude Cowork .

What https://www.anthropic.com/news/claude-sonnet-4-6 says, word for word.

## Sources

- https://www.anthropic.com/news/claude-sonnet-5 (primary, Anthropic, published 2026-06-30)
- https://www.anthropic.com/news/claude-sonnet-4-6 (primary, Anthropic, published 2026-02-17)

## Supersedes

- [Claude](/record/claude.md) | default_model | [Claude Sonnet 4](/record/claude-sonnet-4.md) | valid 2025-05-22 to 2025-09-29 | conf 0.95 | superseded | superseded_by [clm_50F23B443136](/claim/clm_50F23B443136.md) | [clm_E6D59A90B884](/claim/clm_E6D59A90B884.md)

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