I've been using versions of Opus 4 for coding for a bit now. The numbers in the chart don't do it justice. Absolute game changer in staying on track, writing maintainable code, and generally doing what I want and expect rather than reward hacking. A+ job, team!
Introducing the next generation: Claude Opus 4 and Claude Sonnet 4.
Claude Opus 4 is our most powerful model yet, and the world’s best coding model.
Claude Sonnet 4 is a significant upgrade from its predecessor, delivering superior coding and reasoning.