Anthropic 发布 Sonnet 5.5，称更快更便宜的工作助手
Anthropic releases Sonnet 5.5, which it calls a significantly cheaper, faster work partner
Anthropic 发布中端模型 Sonnet 5.5，称其速度比上一代 Sonnet 5 快 30%，token 消耗速度也明显更慢，定位为适合编码和办公文档等日常任务的助手。Anthropic 的基准测试显示，Sonnet 5.5 在智能体编码上表现优于 Opus 5.5，原因可能是它能在不超成本上限的情况下派生多个智能体。Anthropic 还称 Sonnet 5.5 的网络能力与 Opus 5 相当，因此成为首个适用与 Fable、Opus 相同网络安全防护措施的 Sonnet 模型，并计划在未来几周发布新版 Haiku。
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Anthropic 中端模型 Sonnet 5.5 以速度和成本为核心卖点，读者可据此判断日常编码与文档任务该选哪一档模型。
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As the AI model wars continue, Anthropic has released the newest version of Sonnet , the company’s mid-tier model, which it says will work much faster (and for significantly less) than its predecessor.
The lab describes Sonnet 5.5 as an ideal assistant for everyday tasks — including coding and creating office documents.
Sonnet 5, 5.5’s predecessor, was announced about three months ago. At the time, the model’s selling point was efficient agentic deployment — the ability to run agents at a lower cost than competitors.
The big selling point with 5.5, meanwhile, is speed. Anthropic claims that Sonnet 5.5 is 30% faster than its predecessor and that its rate of token burn is significantly slower.
In the Anthropic hierarchy of models, Sonnet is less powerful than the Opus model but can be more useful in certain circumstances because its agility. In particular, Anthropic’s benchmarks show Sonnet 5.5 performing better than Opus 5.5 on agentic coding, likely because of its ability to spawn multiple agents without exceeding cost limits.
Sonnet 5.5 is also said to have significant cyber capabilities, with the company claiming that it has “comparable” cyber capabilities to Opus 5. As a result, Anthropic says that 5.5 is the first Sonnet model that will be subject to the same cyber safeguards that apply to Fable and Opus.
The company also plans to release a new version of Haiku — its smallest model — in the coming weeks, although it didn’t give a firm date as to when that would happen.
The last year has seen a flurry of new model releases from the major AI labs. Just last week, OpenAI released a number of new models — including enhanced versions of Sol and Luna, its mid-tier and budget-friendly models. Meta also announced a new model , which it said would power an upcoming feature associated with its smart glasses.