Claude Code

Let Opus Advise While Sonnet Does the Routine Work

How to put a cheaper main model in the driver's seat and call Opus only at the hard moments: the one command, which pairings work, what it costs, and where it does not run

2min read
1prompts to copy
6numbered steps
4sections

Most turns in a Claude Code session are routine: reading files, running tests. The advisor lets a cheaper main model do those and ask a stronger model for advice at the moments that decide the outcome.

Step 1: pick a main model and an advisor

  1. Switch your main model to Sonnet with /model.
  2. Run /advisor opus. Claude Code confirms with 'Advisor set to' and saves it as your default.
  3. Or set it for one session only: claude --advisor opus. To save it in settings, add "advisorModel": "opus".

Keep reading

Free, for an email.

Unlocks 3 more sections, 1 copy-paste prompt, the document version, and every other guide on the site, for free. Enter your email once to keep reading.

45,000+ follow where these guides come from.No spam. Unsubscribe in one click.

Read next