Claude Sonnet 5.5

Anthropic's product graphic for the Claude Sonnet 5.5 announcement.
Claude Sonnet 5.5 Keeps Sonnet 5's Price and Posts Anthropic's Terminal-Bench Jump
AI
On September 28, 2026, Anthropic introduced Claude Sonnet 5.5 at Sonnet 5's price, with a jump on Terminal-Bench.