Anthropic发布Sonnet 5.5模型，称速度提升30%且token消耗更低
人工智能公司Anthropic于2026年9月29日发布其中端模型Claude Sonnet 5.5。官方称，该模型比三个月前发布的Sonnet 5快30%，token消耗显著更低，适合编程、创建办公文档等日常任务。
Sonnet 5于2026年6月底推出，当时主打高效智能体部署，即能以比竞争对手更低的成本运行智能体。Sonnet 5.5的主要卖点是速度。在Anthropic的模型体系中，Sonnet定位低于旗舰级Opus，但其灵活性使其在某些场景下更具优势。该公司基准测试显示，Sonnet 5.5在智能体编程任务上的表现优于Opus 5.5，这可能得益于其能够生成多个智能体且不超出成本上限。
在网络安全能力方面，Anthropic表示Sonnet 5.5与Opus 5相当。因此，该模型成为首款适用Fable和Opus同级安全防护措施的Sonnet系列模型。此外，Anthropic还计划在未来几周内发布其最小模型Haiku的新版本，但未给出具体日期。
过去一年，主要AI实验室密集发布新模型。2026年9月22日，OpenAI发布了Sol和Luna的增强版本；Meta也宣布了一款新模型，将用于智能眼镜相关功能。
- 2026-09-29 20:03 | therundown.ai：Anthropic's mid-tier Claude climbs the rankings阅读原文
Good morning, AI enthusiasts, and welcome to our 5,342 new readers. OpenAI takes the stage today for one of its most hyped days of the year. In typical industry fashion, its top rival wasn’t going to make things easy. Anthropic just launched Sonnet 5.5 on the heels of last week's big Opus release, ...
- 2026-09-29 07:50 | 财联社：一起呼吁“AI减速”？OpenAI取消最新模型发布，Anthropic却“两连发”！阅读原文
财联社9月29日讯（编辑 黄君芝）同样是在呼吁放慢技术发展脚步，人工智能（AI）行业两大“领头羊”——Anthropic和OpenAI——却似乎走上了两条截然不同的道路：前者已连发两个AI模型，而后者宣布取消发布新的人工智能模型。 据媒体周一证实，OpenAI决定不发布即将推出的人工智能模型GPT-6.1 Astra，因为该公司认定该模型未能充分满足其安全标准。 OpenAI决定放弃发布新模型之际，人工智能行业正面临着对高级模型安全性日益加剧的担忧。本月初，Anthropic首席执行官达里奥·阿莫代伊（Dario Amodei）在一篇文章中敦促各AI实验室放慢模型开发速度，因为人们担心这些模型...
- 2026-09-29 05:55 | gizmodo.com：Anthropic Releases Its Second New AI Model in Less Than a Week阅读原文
Anthropic is continuing to release new AI models at a rapid clip, despite its CEO’s pleas for a unilateral slowdown to give the industry’s safety frameworks time to catch up with the technology’s capabilities. In this case, at least, we’re talking about the release of a new entry in the company’s mi...
- 2026-09-29 04:14 | X：Sonnet 5.5 is now available in Cursor! It’s a strong model, performing on par with Opus in many tasks.阅读原文
Sonnet 5.5 is now available in Cursor!It’s a strong model, performing on par with Opus in many tasks.
- 2026-09-29 03:10 | X：See more: https://t.co/9fLugEGp7U阅读原文
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.
- 2026-09-29 03:10 | X：Claude Sonnet 5.5 from @AnthropicAI is live on OpenRouter! Sonnet 5.5 is significantly smarter than...阅读原文
Claude Sonnet 5.5 from @AnthropicAI is live on OpenRouter!Sonnet 5.5 is significantly smarter than Sonnet 5, and writes much more clearly.It's also 30% faster and ~30% cheaper for most work.
- 2026-09-29 02:04 | X：Claude Sonnet 5.5 is now available:阅读原文
Claude: 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.
- 2026-09-29 02:00 | TechCrunch：Anthropic releases Sonnet 5.5, which it calls a significantly cheaper, faster work partner阅读原文
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 creat...
- 2026-09-29 02:00 | venturebeat.com：Anthropic launches Claude Sonnet 5.5 with 30% cost reduction per-task due to faster speeds and fewer tool calls阅读原文
Anthropic today announced it's releasing Claude Sonnet 5.5, a faster and more efficient update to its mid-tier, workhorse AI model.In several of the company’s tests, Sonnet 5.5 comes strikingly close to the performance of its more expensive sibling, Opus 5.5, Anthropic's new flagship model released ...