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Introducing Claude Sonnet 5.5 on AWS

Claude Sonnet 5.5 is now available on Amazon Bedrock and Claude Platform on AWS. It's a smarter, more efficient Sonnet model for focused coding and knowledge work, with a lower cost per task at faster speed. This post covers what's new, when to choose Sonnet, and how to get started.

Read the full story at AWS Machine Learning Blog ↗

Timeline · 2 reports

  1. 2026-09-28 18:57 · AWS Machine Learning Blog
    Introducing Claude Sonnet 5.5 on AWS
  2. 2026-09-28 18:03 · r/ClaudeAI
    Introducing Claude Sonnet 5.5, the second model in the Claude 5.5 family

More stories

  1. Anthropic releases Sonnet 5.5, which it calls a significantly cheaper, faster work partner — TechCrunch AI
  2. Opus 5.5 — r/ClaudeAI
  3. Claude Sonnet 5.5 now available on AI Gateway — Vercel Blog
  4. Did Anthropic’s A.I. Really Make a Scientific Discovery on Its Own? — New York Times AI
  5. Anthropic releases Claude Sonnet 5.5 with the cyber limits it reserved for its best models — The Next Web
  6. Optimizing my AI subscriptions: Claude Pro (Opus) vs. ChatGPT Plus vs. Perplexity Pro? — r/AI_Agents
  7. Anthropic's Claude Sonnet 5.5 nearly matches Opus 5.5 on benchmarks while costing up to 30 percent less per task — The Decoder
  8. Anthropic launches Claude Sonnet 5.5 with near-Opus performance at half the price — The New Stack AI

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