Anthropic 发布 Claude Sonnet 5.5，称提速超 30%
Claude Sonnet 5.5
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导读
Anthropic 发布 Claude Sonnet 5.5，官方称其运行速度快 30% 以上、多数工作成本最多降低 30%，定价与 Sonnet 5 相同。Simon Willison 自测显示它在部分编码任务上接近 Opus 5.5，已成为 claude.ai 免费层所用模型；Anthropic 表示 Haiku 5.5 将在未来几周推出。
推荐理由
作者用同一批编码与渲染任务对比 Sonnet 5.5 与 Opus 5.5，并指出 claude.ai 免费层已换成这一模型。
主体与标签
AnthropicClaude Sonnet 5.5#模型发布#编码#推理#Anthropic
正文
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 produce an SVG.
Here's the pelican it gave me for thinking effort "xhigh", at a cost of 5.74 cents and taking 41 seconds:
Sonnet 5.5 appears to be almost as good as Opus 5.5 on some coding tasks, including various viral 3D animation tricks .
The most interesting thing about Sonnet 5.5 is that it's now the model used for the free tier on claude.ai . OpenAI's ChatGPT free tier uses Luna 5.6, which means Anthropic currently have a much more capable free offering.
I ran this prompt against that free tier:
build me an HTML page that renders a three-dimensional pelican riding a bicycle using WebGL
And got back this page , which is a solid effort.
Anthropic's announcement reiterates that Haiku 5.5 will be available "in the coming weeks". I really hope that one is price-competitive with GPT-6 Luna! Tags: ai , generative-ai , llms , anthropic , claude , pelican-riding-a-bicycle , llm-release