Low-Effort Web Search Prompt for Claude Fable 5.1

Anthropic's documentation notes that thinking capabilities and effort calibrations vary across models: while Claude Sonnet 5.5 can run tasks without upfront thinking, Claude Fable 5.1 supports triggering search at lower effort levels.

When answering empirical queries on Claude Fable 5.1, trigger search retrieval at low effort levels first to gather primary evidence before expending higher thinking effort on cross-source synthesis.