Anthropic 发布 Claude Sonnet 5.5，速度更快成本更低
原标题：Claude Sonnet 5.5
AI 摘要
Anthropic 发布 Claude Sonnet 5.5，官方称其运行速度提升 30% 以上、多数任务成本降低最多 30%，定价与 Sonnet 5 相同但在各项基准上均优于前代。该模型现已成为 claude.ai 免费层所用模型，作者认为其能力明显强于使用 Luna 5.6 的 ChatGPT 免费层。作者还测试了其生成 WebGL 3D 鹈鹕骑自行车页面的能力，并指出 Sonnet 5.5 存在与 Opus 5.5 相同的 max 思考模式耗尽 token 的缺陷。Anthropic 表示 Haiku 5.5 将在未来几周内推出。
正文节选
28th September 2026 - Link Blog Claude Sonnet 5.5. New Sonnet model from Anthropic today. They say it "runs 30%+ faster, and costs up to 30% less for most work" - it's priced the same as Sonnet 5 but appears to beat it on every benchmark, and should be cheaper to run as well. Here are some pelicans riding bicycles. Sonnet 5.5 suffered from the same bug as Opus 5.5: the "max" thinking effort pelican thought for 128,000 tokens (at a cost of $1.28) before running out of tokens and failing to produc