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Anthropic launches Claude Sonnet 5.5 with near-Opus performance at half the price

Anthropic on Monday launched Claude Sonnet 5.5, the latest version of its workhorse model and the second model in the The post Anthropic launches Claude Sonnet 5.5 with near-Opus performance at half the price appeared first on The New Stack .

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  1. 2026-09-28 18:00 · The New Stack AI
    Anthropic launches Claude Sonnet 5.5 with near-Opus performance at half the price

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  1. Introducing Claude Sonnet 5.5 on AWS — AWS Machine Learning Blog
  2. Anthropic releases Sonnet 5.5, which it calls a significantly cheaper, faster work partner — TechCrunch AI
  3. Opus 5.5 — r/ClaudeAI
  4. Claude Sonnet 5.5 now available on AI Gateway — Vercel Blog
  5. Optimizing my AI subscriptions: Claude Pro (Opus) vs. ChatGPT Plus vs. Perplexity Pro? — r/AI_Agents
  6. Anthropic releases Claude Sonnet 5.5 with the cyber limits it reserved for its best models — The Next Web
  7. Did Anthropic’s A.I. Really Make a Scientific Discovery on Its Own? — New York Times AI
  8. When can we say AI made a scientific discovery? — MIT Technology Review AI

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