Anthropic 发布 Claude Sonnet 5.5，速度提升超 30%、成本最多降 30%
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Anthropic 发布 Claude 5.5 家族第二款模型 Claude Sonnet 5.5，各项基准均优于 Sonnet 5，输出速度快 30% 以上，多数任务成本最多低 30%，定价与 Sonnet 5 相同。
官方账号汇总了 Sonnet 5.5 的速度、成本与基准表现，还给出 effort 用法和 Artifact 限时优惠，便于读者选择合适档位。
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claudeai
Claude by Anthropic
claudeai
Claude is an AI assistant built by Anthropic to be safe, accurate, and secure. Talk to Claude on claude.ai or download the app on desktop and mobile.
Newer models can take on bigger tasks than most people are used to giving them. Three habits that could be holding Opus 5.5 and Sonnet 5.5 back, and what to do instead.
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Nate, a designer at Anthropic, used to start a presentation by staring at a blank slide. Now he goes for a walk.
He talks the whole idea into a voice memo on his phone, messy and unstructured, then hands the transcript to Claude with one instruction: turn my exact words into a deck, organized so it makes sense.
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For the next two weeks, start a deck, doc, or design in the Claude app, and the work that follows in that conversation uses 50% less of your usage limits. It applies automatically from your first one and runs through October 15 on Pro, Max, and Team plans.
How it works: support.claude.com/en/ar…
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Introducing Claude Sonnet 5.5, the second model in the Claude 5.5 family.
It’s a clear upgrade over Sonnet 5, runs more than 30% faster, and costs up to 30% less for most work.
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Sonnet 5.5 improves on Sonnet 5 across benchmarks, in some cases dramatically.
It’s a faster, lower-cost complement to Claude Opus 5.5, strongest at well-scoped everyday tasks, fixing bugs, and creating polished documents, slides, and spreadsheets.
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Sonnet 5.5 is priced the same as Sonnet 5, but it typically needs far fewer tokens to do the same work. In our testing, it costs up to 30% less per task than its predecessor.
It also generates output more than 30% faster, making it our fastest Sonnet model to date.
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On several benchmarks, Sonnet 5.5 at Low or Medium effort beats Sonnet 5’s best score for about a tenth of the cost.
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Effort controls how much thinking the model does on any given task. Opus 5.5 has five levels, each with a different purpose. If you’re not getting the results you expected, try increasing the effort level before switching to a more powerful model.
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来源：Claude：Blog（网页） · threads.com