神话下放，Claude Opus 5 发布！

TL;DR - Anthropic released Claude Opus 5, emphasizing stronger coding, reasoning, professional workflows, and autonomous task completion at the same API price as Opus 4.8. Its reported gains are promising but rely largely on Anthropic and early-user evaluations.

• Opus 5 costs $5 per million input tokens and $25 per million output tokens; a 2.5× faster mode costs twice as much.
• Anthropic reports leading results across software engineering, computer use, abstract reasoning, and several scientific evaluations.
• The model supports a 1-million-token context and improves tool use, iterative verification, and multi-agent coordination.
• New experimental features allow tools to change mid-conversation without invalidating prompt caches and support automatic safety-triggered model routing.