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lm15 2.2.0 for R

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@MaximeRivest MaximeRivest released this 07 Nov 01:23
v2.2.0
59a3442

In R: reasoning("low", summary = "auto").

Claude shows its thinking when you ask for it (lm15-contract 9d8e1ce, MAP-7 rule 7 amended; 2,140 of 2,140 checks, the same in every lm15 language).

  • A reasoning summary on Claude sends thinking.display: "summarized". Since Opus 4.7, Anthropic returns a thinking block with empty text unless the request asks for the summary. On Opus 4.7, Opus 4.8 and every Claude 5 model, asking lm15 for reasoning with summary: "auto" gave an empty thinking part (checked live on 14 Claude models). Any summary now adds the setting, with adaptive thinking and with a thinking budget alike; every Claude model accepts it. Without a summary nothing changes: each model's own default.
  • DeepSeek, Meta and Moonshot over the Anthropic Messages wire are unchanged: they return their thinking without the setting.
  • Known, not changed in this release: effort: "off" sends no thinking object to Claude, and Claude 5 thinks anyway. See the contract's change entry, changes/2026-11-07-anthropic-thinking-display.md.

Nothing is removed and no field changes meaning.

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