Anthropic’s Claude Sonnet 4.5 sets a new bar for coding, agentic tasks, and computer use, with 30+ hours of autonomous operation. Early adopters report major gains in accuracy, security, and long-horizon development. With new tools and SDKs, Sonnet 4.5 marks the shift from AI as assistant to AI as a true engineering teammate.
Anthropic Launches Claude Sonnet 4.5: Built for Production Coding and Extended Autonomous Work
By drweb
