Supervisor / Orchestrator-Worker — Anthropic Research pattern Lead (Opus 4) plan · delegate · synthesize never reads raw sources Worker 1 (Sonnet 4) fresh 200k context sub-question: "origins" returns: narrow summary Worker 2 (Sonnet 4) fresh 200k context sub-question: "state of art" returns: narrow summary Worker 3 (Sonnet 4) fresh 200k context sub-question: "open problems" returns: narrow summary synthesis lead reads worker summaries only why it wins fresh context per worker · parallel wall-clock · narrow worker prompts +90.2% over single-agent Opus 4 (Anthropic internal research evals) · 80% of BrowseComp variance explained by tokens alone