# Claude Opus 4.6 deprecation

lineage: /models/claude.md  

entity: /record/claude-opus-4-6.md  
predicate: deprecated  
page: /record/claude-opus-4-6/deprecated  
as_of: 2026-11-11  
cite: AsOf. "Claude Opus 4.6 deprecated: fast mode", as of 2026-05-28. Claim clm_7AC3B47F24F1, https://asof.is/claim/clm_7AC3B47F24F1, accessed 2026-11-11. Source: https://platform.claude.com/docs/en/release-notes/overview#2026-05-28.  

As of November 11, 2026, the AsOf record says Claude Opus 4.6 was deprecated on May 28, 2026 (as fast mode), from a primary source (platform.claude.com).

1 claim on Claude Opus 4.6's deprecation, 1 open and 0 superseded, each dated and sourced; a replaced value is closed with an end date, never deleted.

## Current deprecation

What the record asserts on 2026-11-11.

- [Claude Opus 4.6](/record/claude-opus-4-6.md) | deprecated | fast mode | valid 2026-05-28 to present | conf 0.70 | valid | [clm_7AC3B47F24F1](/claim/clm_7AC3B47F24F1.md)
  sources: https://platform.claude.com/docs/en/release-notes/overview#2026-05-28

## Every dated value

One claim per line, oldest first. Superseded claims stay visible.

- [Claude Opus 4.6](/record/claude-opus-4-6.md) | deprecated | fast mode | valid 2026-05-28 to present | conf 0.70 | valid | [clm_7AC3B47F24F1](/claim/clm_7AC3B47F24F1.md)
  sources: https://platform.claude.com/docs/en/release-notes/overview#2026-05-28

## Questions this record answers

### When was Claude Opus 4.6 deprecated?

On May 28, 2026 (as fast mode), from a primary source (platform.claude.com) (status valid, confidence 0.70).


## Read on

- This page: /record/claude-opus-4-6/deprecated (markdown: /record/claude-opus-4-6/deprecated.md)
- Entity twin: /record/claude-opus-4-6.md · timeline: /timelines/claude-opus-4-6.md

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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.