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Anthropic launches Claude Opus 5.5, promising Fable-level performance at a lower price

Anthropic says Claude Opus 5.5 rivals Fable 5.1 on most work at 40 percent lower cost than Opus 5, with tougher safeguards.

Read the full story at Mashable AI ↗

Timeline · 5 reports

  1. 2026-09-23 14:18 · AI Insider
    Anthropic Launches Claude Opus 5.5 With Stronger Coding Performance and Lower Pricing
  2. 2026-09-22 22:58 · SiliconANGLE AI
    Anthropic releases Claude Opus 5.5 and OpenAI counters with two cheaper GPT-6 models
  3. 2026-09-22 20:41 · TestingCatalog AI News
    Anthropic launches Claude Opus 5.5 with lower API costs
  4. 2026-09-22 18:59 · MarkTechPost
    Anthropic Releases Claude Opus 5.5: Fable 5.1-Level Performance at 40% Lower Running Cost Than Opus 5
  5. 2026-09-22 17:12 · Mashable AI
    Anthropic launches Claude Opus 5.5, promising Fable-level performance at a lower price

More stories

  1. GPT-6 Sol and Luna now available on AI Gateway — Vercel Blog
  2. Sam Altman’s remarks at the United Nations Security Council — OpenAI News
  3. Anthropic and OpenAI roll out cheaper models in first release since call for slowdown — CNBC Technology
  4. Help? — r/GeminiAI
  5. DeepL is now available in Microsoft Copilot, ChatGPT and Claude via MCP — DeepL Blog
  6. Opus 5.5 vs. GPT-6 Sol: which model won my blind taste test? — How I AI
  7. AI slowdown? OpenAI and Anthropic launch cheaper AI models days after urging caution on frontier AI — Mint AI
  8. this is what it means when we use Codex and Claude Code to do job. — r/ClaudeAI

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