Anthropic 发布 Claude Haiku 5.5，并推出订阅用户 API 额度
原标题：Introducing Claude Haiku 5.5
AI 摘要
Anthropic 发布快速低价模型 Claude Haiku 5.5，定价与 OpenAI 上月发布的 GPT-6 Luna 完全一致（10 万 token 内 $0.10/$0.50），但超过 10 万 token 后涨价 5 倍，而 Luna 在 27.2 万 token 才小幅涨价。Haiku 5.5 采用更不慷慨的分词器，同一提示词 token 数约为 Haiku 4.5 的 1.25 倍，构成隐性涨价。Anthropic 同时将 Sonnet 5.5 缓存读取价格减半，并向 Max 和 Team 订阅用户每月发放 API 额度（Max 5x 为 100 美元、Max 20x 为 200 美元、Team 最高 500 美元），额度不可结转。
正文节选
Introducing Claude Haiku 5.5 7th October 2026 As previously promised, here’s Anthropic’s new fast, low cost model: Introducing Claude Haiku 5.5. The previous Haiku, 4.5, was very much showing its age. It came out almost a year ago, and was priced at $1/million input and $5/million output—relatively expensive even back then, and a full 10x the price of OpenAI’s GPT-6 Luna, released last month. The new Haiku exactly matches the price of GPT-6 Luna—$0.10/$0.50—up to 100,000 tokens. Beyond 100,000 t