Claude Fable 5 is back. After an 18-day suspension under a US export-control order, Anthropic’s most capable model returned globally on July 1 — in the same week it made the cheaper Claude Sonnet 5 its new default. That one-two punch is a good excuse to answer the question everyone’s actually asking: what AI model should you use? In 2026, every lab now ships a full family of models instead of one…
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