unpinOpus48LaunchEffort
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.
Three model 'launch-effort pinning' config fields were removed from the default client settings
Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.280.
In the changelogs
3Releases whose published page names unpinOpus48LaunchEffort.
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v2.1.280
Model launch-effort pinning flags removed from client config
Three model 'launch-effort pinning' config fields were removed from the default client settings
found in this entry's text
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v2.1.280
New models are unpinned from launch-time forced effort by default; existing installs stay pinned
Newly launched models like claude-opus-4-7 and claude-fable-5 stay pinned to a launch effort level unless unpinned, but only on installs that predate this build
named in this entry, found in this entry's text
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v2.1.170
Effort Flag Passthrough Now Requires All Three Models Launched
found in this entry's text
First cited
0No 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
0The 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.