Accepted advisor pairings, verbatim
guidance
The advisor must be at least as capable as the main model. Accepted pairings: Haiku 4.5 main -> Fable, Opus, or Sonnet advisor (Haiku can call the advisor but cannot act as one). Sonnet 4.6 main -> Fable, Opus, or Sonnet advisor. Opus 4.6+ main -> Fable or Opus at or above the main model's version (an Opus 4.7 main with an Opus 4.6 advisor is rejected). Fable 5 main (v2.1.170+) -> Fable advisor only (an Opus or Sonnet advisor is rejected, since Fable is a higher tier than both).
source
code.claude.com/docs/en/advisor.md
provenance
source_site subagentprompts.com · created 2026-07-01 20:54:11 · JSON