Anthropic's Claude Sonnet 4.5 is available now - ‘the best AI model in the world for real-world agents, coding, and computer use’

Anthropic launched Claude Sonnet 4.5, which the company claims is "the best coding model in the world" and strongest for building complex agents and computer use. The new AI model can work autonomously for up to 30 hours compared to its predecessor's 7-hour capability. Early adopters including Canva and iGent AI report impressive results, with the model handling complex coding tasks and maintaining coherence across large projects while freeing engineers to focus on architectural work.