Anthropic's coding tools have become well regarded amongst developers, with its Claude 4 Sonnet model, released in May , serving as a free and reliable coding assistant for many. Just months later, Anthropic has released its next generation model, featuring upgrades to its performance across the board. Also: Anthropic's free Claude Sonnet 4 aced my coding tests but its paid Opus model somehow didn't Claude Sonnet 4.5 is now available, the company said Wednesday, claiming
