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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

Claude Code v2.1.219 ·

opus5 in the local model listing

The local model listing endpoint now includes Opus 5 among its available keys.

Under the hood No documentation found New Features
JSON All of v2.1.219
Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
0Signal: worth watching, 1 to 5
ModelsArea: what it touches
New FeaturesKind: in v2.1.219,
New FeaturesSection of the release
What

Opus 5 now appears in the model enumeration served by the built-in SDK/proxy model-listing endpoint.

Details
  • The list of model keys now includes "opus5" alongside "opus48" and "fable5".
Evidence

"opus5"

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

Read from
Names in the bundleopus5

See this entry in the whole of v2.1.219 →

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