claude-sonnet-4-5@20250929
claude-sonnet-4-5@20250929 (Vertex AI) is marked legacy, with no shutdown date announced yet.
Unconfirmed: the provider's pages disagree or look out of date. Check the source before acting on this.
- Provider
- Vertex AI
- Shutdown
- not announced
- Announced
- —
- Replace with
- no replacement named
- Provider says
- Deprecated (per Anthropic's Google-managed table; no date)
- Also written as
- publishers/anthropic/models/claude-sonnet-4-5@20250929
- Anthropic's Google-managed model table labels this ID '(deprecated)'. Google sets the dates and no Google retirement date was found.
- Google model card (https://docs.cloud.google.com/gemini-enterprise-agent-platform/models/partner-models/claude/sonnet-4-5): 'Retirement date not sooner than September 29, 2026' - a minimum, not a shutdown date; that date has passed.
- Do NOT apply the Claude API (anthropic) retirement date to this Vertex ID.
Source: https://platform.claude.com/docs/en/build-with-claude/claude-models-on-google-cloud/google-managed · report a wrong date
Is claude-sonnet-4-5@20250929 in your code?
$ npx dead-models