signalAI热榜2026-09-25
Anthropic launches Claude Opus 5.5: optimizing cost for longer, more context-heavy coding sessions
Claude Opus 5.5 costs about 40% less than Opus 5 for typical token-billed workloads, with cache read prices reduced by 60% and cache tokens only one fifth of competitors. Context per request has grown 2.6x, and Opus 5.5 generates output 30% faster than Opus 5. Zeta Labs found that Opus 5.5 cuts costs nearly in half and doubles the number of hardest tasks completed, while requiring fewer rounds.
- for who
- Developers using Claude Code, especially those paying per token for long, context-heavy sessions.
- why now
- Claude Opus 5.5 just launched, cutting costs 40 percent and cached token prices 60 percent.
- what changes
- They can cut costs significantly on long sessions by adopting Opus 5.5 and caching practices, including 1-hour cache TTL and model selection stability.
- to do
- Run /usage in Claude Code, set 1-hour cache TTL for API users, and use Opus 5.5 for open-ended tasks.
key points
- Opus 5.5 costs 40% less than Opus 5 for token-billed workloads, outputs 30% faster
- Cache read prices down 60%, cache tokens one fifth of competitors, context up 2.6x
- Zeta Labs saw nearly half cost and double difficult tasks with fewer rounds
#Claude Opus 5.5#cost optimization#Claude Code
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