DEAD MODELS
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claude-3-5-sonnet-v2 (Vertex AI) was shut down on Feb 19, 2026; calls to it fail.

claude-3-5-sonnet-v2

claude-3-5-sonnet-v2 (Vertex AI) was shut down on Feb 19, 2026; calls to it fail.

Provider
Vertex AI
Shutdown
Feb 19, 2026 (already shut down)
Announced
Aug 20, 2025
Replace with
no replacement named
Also written as
claude-3-5-sonnet-v2@20241022, publishers/anthropic/models/claude-3-5-sonnet-v2, publishers/anthropic/models/claude-3-5-sonnet-v2@20241022
  • Google's partner-model deprecation page gives the family ID; the @YYYYMMDD versioned ID is from Anthropic's archived model table (Vertex column). No replacement named.
  • Vertex date - differs from the Claude API (anthropic) date for the same model.

Source: https://docs.cloud.google.com/gemini-enterprise-agent-platform/models/deprecations/partner-models · report a wrong date

Is claude-3-5-sonnet-v2 in your code?

$ npx dead-models