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Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial
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Claude Code v2.0.51 ·

Default Model Logic for Max/Team Users

Entry
JSON All of v2.0.51
EntryKind: in v2.0.51,
ChangesSection of the release

Max and Team subscribers now default to Opus 4.5 instead of requiring manual model selection.

  • First-party API users get Opus 4.5 by default
  • Cloud provider (Bedrock/Vertex) users continue with Opus 4.1
  • Respects ANTHROPIC_DEFAULT_OPUS_MODEL environment variable override
  • Evidence: Function PnA() at line 224154, QUA() at line 224121

See this entry in the whole of v2.0.51 →

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