Deep dive into Sonnet 5.5: half-price Opus is only the surface; agent runtime is the core shift
深度拆解 Sonnet 5.5 ：半价 Opus 只是表象，Agent Runtime 才是变化核心
- Who
- anthropic
- When
What happened
Anthropic released Claude Sonnet 5.5. API prices are unchanged and generation is faster, while its scores rose substantially on agent benchmarks such as Terminal-Bench and CursorBench.
Reported by 4 sources
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