# clm_672402D8A9E6

subject: Imagen (/record/imagen.md)  
predicate: released  
value: Imagen 4 Ultra  
valid_from: 2025-08-14  
valid_to: null  
published: 2025-08-14  
recorded: 2026-11-02  
confidence: 0.50  
status: valid  
assertable: true  
superseded_by: null  
last_updated: 2026-11-02  
checked: 2026-11-02 · its source page states the value and the date  

> August 14, 2025 Released Imagen 4 Ultra, Standard and Fast models as generally available (GA).

What https://ai.google.dev/gemini-api/docs/changelog#2025-08-14 says, word for word.

## Sources

- https://ai.google.dev/gemini-api/docs/changelog#2025-08-14 (primary, Google, published 2025-08-14)

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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.