# clm_B1D2F8B54316

subject: Harvey (/record/harvey.md)  
predicate: adopted  
value: Sonnet 4.5  
valid_from: 2025-09-30  
valid_to: null  
published: 2025-09-30  
recorded: 2026-11-06  
confidence: 0.70  
status: valid  
assertable: true  
superseded_by: null  
last_updated: 2026-11-06  
cite: AsOf. "Harvey adopted: Sonnet 4.5", as of 2025-09-30. Claim clm_B1D2F8B54316, https://asof.is/claim/clm_B1D2F8B54316, accessed 2026-11-08. Source: https://www.harvey.ai/blog/sonnet-4-5-now-live-in-harvey.  
checked: 2026-11-06 · its source page states the value and the date  

> Announcing Sonnet 4.5 in Harvey by Harvey Team • Sep 30, 2025 Today we are making Claude Sonnet 4.5 available in Harvey.

What https://www.harvey.ai/blog/sonnet-4-5-now-live-in-harvey says, word for word.

## Sources

- https://www.harvey.ai/blog/sonnet-4-5-now-live-in-harvey (primary, Harvey, published 2025-09-30)

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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.