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Sweep 12 Nov 2026 · 23:00Z Build v2.1.323 540 read Stable v2.1.311 Latest v2.1.323 Next v2.1.323 Feeds RSS JSON llms.txt llms-full.txt Unofficial
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sonnet

setting never mined JSON

A Claude Code settings key, read out of the shipped bundle. No mined inventory carries it: everything below comes from what this site has written about it.

The 1M-context restriction that blocks certain Sonnet model switches now also blocks opusplan[1m]

Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.265.

First seen — never in a mined build
Last seen — never in a mined build
Builds0 / 162on this box, as of v2.1.323
Written about v2.1.30 first named in a changelog, 3 Feb 2026

In the changelogs

13

Releases whose published page names sonnet.

  1. v2.1.310
    Default models for sonnet, opus and haiku can be set by Anthropic

    The model the sonnet, opus and haiku aliases pick by default can now come from a document Anthropic sends, while environment variables still win

    found in this entry's text, named in this entry

  2. v2.1.288
    Auto mode ignores an excluded model set in ANTHROPIC_DEFAULT_SONNET_MODEL

    If ANTHROPIC_DEFAULT_SONNET_MODEL names an excluded model, auto mode's classifier uses the Sonnet 5 default and logs the reason once

    found in this entry's text

  3. v2.1.284
    Sonnet 5.5 added and made the default for the sonnet model name

    Sonnet 5.5 (claude-sonnet-5-5) is now in the model list and is what sonnet picks when using Anthropic directly

    named in this entry, found in this entry's text

  4. v2.1.284
    The sonnet model name now points to Sonnet 5.5 on the Anthropic API

    Choosing sonnet now selects Sonnet 5.5 instead of Sonnet 5 on the Anthropic API, while Bedrock, Vertex and other providers keep older models

    named in this entry, found in this entry's text

  5. v2.1.284
    Model aliases like opus now pick the first matching model in a configured list

    With a configured model list, opus, sonnet and haiku now map to the first model of that family in the list, not the canonical claude- ID

    named in this entry, found in this entry's text

  6. v2.1.282
    Routine-scheduling example uses the current Sonnet model instead of a fixed one

    The example in the routine-scheduling skill now fills in whatever model "sonnet" currently points to rather than always naming claude-sonnet-5

    found in this entry's text

  7. v2.1.265
    Opus 1M-context restriction extended to opusplan[1m]

    The 1M-context restriction that blocks certain Sonnet model switches now also blocks opusplan[1m]

    found in this entry's text

  8. v2.1.197
    Claude Sonnet 5 Is Now the Default Model

    found in this entry's text

  9. v2.1.197
  10. v2.1.195
    Model Catalog: New and Updated Models

    found in this entry's text

  11. v2.1.166
    fallbackModel setting in settings.json

    found in this entry's text

  12. v2.1.67
  13. v2.1.30
    Enhanced Custom Subagent Schema

    found in this entry's text

First cited

0

No release's published evidence quotes this name. The ledger indexes the Evidence lines of every changelog on this site, so this says nobody here has ever quoted it; it says nothing about how old the name is.

Presence across releases

0

The miner has never read a build containing this name. It is here because a changelog entry of ours names it, which is evidence that it existed and not evidence of which releases carried it. The inventory starts at v2.1.138 and everything older than that was never mined.

Read out of the published npm bundle release by release, and out of Anthropic's own documentation as this site captured it. Nothing on this page is a description anybody here wrote about what the settings key does. All settings keys.

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