Anthropic's same-day double launch: Sonnet 5 raises the agentic bar, Claude Science gives researchers a workbench

Anthropic released Claude Sonnet 5 (described as 'our most agentic Sonnet yet, with top-tier intelligence for coding and everyday professional work') and Claude Science (a customizable app that integrates the tools and packages researchers most often use, produces auditable artifacts, and provides flexible access to computing resources) on the same day, June 30, 2026.