# clm_8498C4C823D7

subject: Gemini (/record/gemini.md)  
predicate: model_release  
value: Gemini 3.1 Pro Preview  
valid_from: 2026-02-19  
valid_to: null  
published: 2026-02-19  
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  

> February 19, 2026 Released Gemini 3.1 Pro Preview , our latest iteration in the new Gemini 3 series family.

What https://ai.google.dev/gemini-api/docs/changelog#2026-02-19 says, word for word.

## Sources

- https://ai.google.dev/gemini-api/docs/changelog#2026-02-19 (primary, Google, published 2026-02-19)

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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.