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Anthropic’s cheaper Opus arrives weeks before its IPO

Anthropic released Claude Opus 5.5 on Tuesday at $4 per million input tokens and $20 per million output, below the $5 and $25 that Opus 5 has carried since July, and says it performs similarly to the more expensive Fable 5.1 on most work. It is the first model since Dario Amodei called for third-pa…

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  1. 2026-09-22 17:24 · The Next Web
    Anthropic’s cheaper Opus arrives weeks before its IPO

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  3. Claude Opus 5.5 now available on AI Gateway — Vercel Blog
  4. Anthropic launches Claude Opus 5.5 with stricter safeguards for cybersecurity — The Verge AI
  5. AIに固有の名前・財布・行動の自由を与えたら、「道具」ではなく「住民」になると思いますか？ — r/AI_Agents
  6. we made a 27b model for creative writing. performs as good as claude fable 5, at a 40x cheaper price, open weights. — r/GeminiAI
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