Introducing Claude Opus 5
9 experts across 3 network communities independently surfaced this.
“Insane numbers for opus 5, the power of faster iteration speed + scaled RL (Fable too big to RL as well, yet). And on safeguards "Based on our testing, we expect the classifiers to intervene around 85% less often than they do for Fable 5.". www.anthropic.co…”
“hello fast mode my old friend I've come to code with you again www.anthropic.com/news/claude-...”