Claude Sonnet 4.5 is now availableAnthropic announced the launch today alongside improvements to other existing productsClaude Code now has checkpoints and you can create files directly from within Claude's chatbotAnthropic has released Claude Sonnet 4.5, the next generation of its incredibly popular AI model. The company is calling Sonnet 4.5 "the best coding model in the world" and claims it's the "strongest model for building complex agents" and for "using computers." Claude Sonnet 4.5 is available today, and prices remain the same per million tokens as the previous model Sonnet 4. (Image credit: Anthropic)A huge leap forward(Image credit: Anthropic)OpenAI's latest study shows Claude Sonnet 4.1 beats GPT-5, Gemini, and Grok in real-world job tasks. Claude Sonnet 4.5 looks set to be one of the biggest AI releases of the year, and while we're yet to try it ourselves, it sure does sound incredibly promising.