This article provides a guide to choosing between Anthropic's Claude models, specifically Sonnet 5, Opus 5, Fable 5.1, and Haiku 4.5. It outlines five different effort levels and suggests two key questions to help users select the most appropriate model for their specific tasks. AI
IMPACT Helps users select the most efficient Claude model for their specific tasks.
RANK_REASON The item is a user-facing guide to existing models, not a new release or research.
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