# clm_7223EDC27895

subject: Claude Sonnet 5 (/record/claude-sonnet-5.md)  
predicate: context_window  
value: 1M token context window  
valid_from: 2026-06-30  
valid_to: null  
published: no source on record carries a date  
recorded: 2026-11-04  
confidence: 0.95  
status: valid  
assertable: true  
superseded_by: null  
last_updated: 2026-11-04  
checked: 2026-11-04 · its source page states the value and the date  

> June 30, 2026 We’ve launched Claude Sonnet 5 ( claude-sonnet-5 ), the next generation of our Sonnet model family, at introductory pricing of $2 / $10 USD per MTok (made the standard price on August 10, 2026). Claude Sonnet 5 supports a 1M token context window

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

## Sources

- https://platform.claude.com/docs/en/release-notes/overview (primary, Anthropic (Claude Platform release notes))

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