ShiZhen AI

Apr 10, 2026 · Artificial Intelligence

Anthropic Advisor Strategy: Sonnet Runs, Opus Guides – Scores Up, Costs Down

Anthropic’s new Advisor Strategy lets the low‑cost Sonnet (or Haiku) model handle full agent tasks while invoking the powerful Opus model only for difficult decision points, delivering a 2.7‑point score boost on SWE‑bench with roughly 12% lower cost, and can be added with a single API call.