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Sweep 02 Oct 2026 · 18:55Z Build v2.1.288 509 read Stable v2.1.285 Latest v2.1.288 Next v2.1.288 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.287 ·

Model name lookup returns a fixed name early in some cases

Under one condition, Claude Code now skips its usual model name lookup and returns a fixed name

Under the hood Internal Changes
JSON All of v2.1.287
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
ModelsArea: what it touches
Internal ChangesKind: in v2.1.287,
Internal ChangesSection of the release
What

The lookup that turns a model ID into a model name now returns a fixed name straight away when a certain condition holds. Otherwise it works as before, falling back to "third-party" for models it does not recognise.

Why

The model name shown or reported may differ in some cases.

How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtThe condition and the name it returns could not be identified.

See this entry in the whole of v2.1.287 →

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