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Sweep 10 Nov 2026 · 02:18Z Build v2.1.322 539 read Stable v2.1.311 Latest v2.1.322 Next v2.1.322 Feeds RSS JSON llms.txt llms-full.txt Unofficial
HomeDocsClaude Code CLI 9 Sep 2026
One change · claude-code

Communications kit changedcommunications-kit

Nearest release: v2.1.267, published an hour after this site recorded the change. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

Recorded here
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First seen 14 Aug 2026 this site's first read of the page
Recorded edits14to this page, all time

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207207mid-session. *Sonnet* is the workhorse default for everyday feature work,
208208bugs, tests, and reviews. Reach for *Opus* on large refactors, gnarly
209209debugging, or anything high-stakes. Drop to *Haiku* for quick questions,
210formatting, and mechanical edits where speed wins. *Fable* is the most
210formatting, and mechanical edits where speed wins.
211 
212*Fable* is the most
211213capable model for your hardest, longest-running tasks; it is not the
212214default, so select it with `/model fable`, and note that cybersecurity and
213215biology content falls back to Opus automatically. Opus 5 runs its own
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222224 
223225| Model | Best for |
224226| ------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
225| Fable | The hardest, longest-running tasks. Opt-in only: select it with `/model fable`. Cybersecurity or biology content [falls back to Opus](/docs/en/model-config#automatic-model-fallback) |
227| Fable | The hardest, longest-running tasks. Opt-in only: select it with `/model fable`. Cybersecurity or biology content triggers [automatic model fallback to Opus](/docs/en/model-config#automatic-model-fallback) |
226228| Opus | Large-scale refactors, complex debugging, architecture decisions, high-stakes changes. On Opus 5, cybersecurity or biology content triggers [automatic model fallback or a refusal](/docs/en/model-config#automatic-model-fallback) |
227229| Sonnet | Everyday feature work, bug fixes, tests, documentation, code review. Recommended default. |
228230| Haiku | Quick questions, formatting, mechanical edits, rapid iteration |
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