The next generation of Claude Claude Sonnet 4.5 Claude Sonnet 4.5 Claude Sonnet 4.5 Claude Sonnet 4.5 Anthropic's Claude Sonnet 4.5 is available now - 'the best AI model in the world for real-world agents, coding, and computer use' News By John-Anthony Disotto Published 29 September 2025 The next generation of Claude When you purchase through links on our site, we may earn an affiliate commission.