Watermelon Sugar, Jalapeños, and Fable-ous return

Sonnet 5 landed as the new default: Opus-level agentic vibes at a lower sticker price, yet somehow pricier per task in independent tests, slower than 4.6 under all the extra thinking, and roasted on Reddit and HN within hours as chattier, more adversarial, and a flat downgrade for a lot of people.