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Sweep 06 Nov 2026 · 01:32Z Build v2.1.319 537 read Stable v2.1.311 Latest v2.1.319 Next v2.1.319 Feeds RSS JSON llms.txt llms-full.txt Unofficial
HomeDocsClaude Code CLI 11 Sep 2026
One change · claude-code

Escalate hard decisions with the advisor tool changedadvisor

Nearest release: v2.1.269, published 3 hours before 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 edits24to this page, all time

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8181 
8282The advisor must be at least as capable as the main model. The accepted advisors for each main model are:
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84| Main model | Accepted advisors | Notes |
85| -------------------- | ------------------------------------ | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
86| Haiku 4.5 | Fable, Opus, Sonnet | Haiku can call the advisor but cannot act as one |
87| Sonnet 4.6 | Fable, Opus, Sonnet | |
88| Sonnet 5 | Fable, Opus, Sonnet 5 | A Sonnet 4.6 advisor is rejected |
89| Opus 4.6 | Fable, Opus, Sonnet 5 | Sonnet 5 and Opus 4.6 are ranked as equally capable, so an Opus 4.6 main accepts a Sonnet 5 advisor |
90| Opus 4.7 or later | Fable, and Opus 4.7 or later | Opus 4.7 and later Opus models are ranked as equally capable, so any of them accepts another as an advisor. An Opus 4.7 main with an Opus 4.6 or Sonnet 5 advisor is rejected |
91| Fable 5.1 or Fable 5 | Fable 5.1, or the same Fable version | An Opus or Sonnet advisor is rejected, and so is a Fable 5 advisor for a Fable 5.1 main model |
84| Main model | Accepted advisors | Notes |
85| -------------------- | ---------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
86| Haiku 4.5 | Fable, Opus, Sonnet | Haiku can call the advisor but cannot act as one |
87| Sonnet 4.6 | Fable, Opus, Sonnet | |
88| Sonnet 5 | Fable, Opus, Sonnet 5 | A Sonnet 4.6 advisor is rejected |
89| Opus 4.6 | Fable, Opus, Sonnet 5 | Sonnet 5 and Opus 4.6 are ranked as equally capable, so an Opus 4.6 main accepts a Sonnet 5 advisor |
90| Opus 4.7 or later | Fable, and Opus 4.7 or later | Opus 4.7 and later Opus models are ranked as equally capable, so any of them accepts another as an advisor. An Opus 4.7 main with an Opus 4.6 or Sonnet 5 advisor is rejected |
91| Fable 5.1 or Fable 5 | Fable 5.1 or Fable 5 | An Opus or Sonnet advisor is rejected |
9292 
9393Fable 5.1 requires Claude Code v2.1.257 or later. Both Fable models require [Fable access](/docs/en/model-config#work-with-fable).
9494 
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