Anthropic released Claude Sonnet 5.5. Price unchanged ($2/$10 per million tokens), and Terminal-Bench 4.0 goes from 10.3% on Sonnet 5 to 70.6%, ahead of Opus 5.5 at 66.4%. 30% faster, up to 30% cheaper per task. CursorBench 55.5%, two points off Opus 5.5. GDPval-AA on knowledge work: 1844 vs Opus 5.5's 1846, so basically level. On complex open-ended tasks Opus 5.5 still wins. 🔗 https://www.anthropic.com/claude-sonnet-5-5
Anthropic released Claude Sonnet 5.5.