How much cheaper is Opus 5.5 for Claude Code tasks?

Claude Devs 测算 Opus 5.5 相比 Opus 5 在 Claude Code 任务中的成本变化

Opus 5.5 input/output tokens are 20% cheaper than Opus 5, and cache reads are 60% cheaper. The author calculated the real cost change for a Claude Code task and built a calculator—readers can run their own estimates at /usage. The post doesn't disclose the exact task cost, only the price cuts and the calculator link.