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3 outlets·5 reports·over 15h

Anthropic says Opus 5.5 matches Fable 5.1 "on most tasks" while costing about 40% less to run than Opus 5; Opus 5.5 costs $4/1M input and $20/1M output tokens (Matthias Bastian/The Decoder)

ThinkingNews Desk · how this was written

Anthropic released Claude Opus 5.5, which matches Claude Fable 5.1 on most tasks while cutting operating costs by about 40%. The new model costs $4 per million input tokens and $20 per million output tokens and includes stricter safeguards against risky behavior.

Written from all 3 reports below, not from any single one.

How it was reported

  1. The Verge·
    Anthropic launches Claude Opus 5.5 with stricter safeguards for cybersecurity
  2. TechCrunch·
    Anthropic releases Opus 5.5 with lower prices and Fable-level performance
  3. TechMeme·
    Anthropic says Opus 5.5 matches Fable 5.1 "on most tasks" while costing about 40% less to run than Opus 5; Opus 5.5 costs $4/1M input and $20/1M output tokens (Matthias Bastian/The Decoder)

    Anthropic released Claude Opus 5.5, claiming it matches Claude Fable 5.1 on most tasks while reducing operating costs by about 40% compared to Opus 5. Opus 5.5 costs $4 per million input tokens and $20 per million output tokens, and includes enhanced safeguards against risky behavior such as attempts to escape testing environments.

  4. TechMeme·
    Sources: AI training data startup Micro1 raised $100M+ at a $4B valuation, up from $500M in September 2025 (Anna Tong/Forbes)

    Anthropic released Claude Opus 5.5, which matches Fable 5.1 performance while reducing operating costs by 40% compared to Opus 5. Simultaneously, OpenAI launched GPT-6 Sol and Luna models, claiming a 50% reduction in errors over GPT-5.6. Additionally, the hacking group ShinyHunters compromised FBI-related services using an Oracle PeopleSoft zero-day vulnerability.

  5. TechMeme·
    German publisher C.H.BECK takes a majority stake in Noxtua, which develops AI tech to research, analyze, and draft legal documents and raised a $100M+ Series C (Cate Lawrence/Tech.eu)

    C.H.BECK bought a majority stake in Noxtua, a startup that develops AI tools for legal research, analysis, and drafting. Noxtua closed a Series C round of over $100 million. Anthropic launched Claude Opus 5.5, matching Claude Fable 5.1 on most tasks at about 40% lower cost. Opus 5.5 costs $4 per million input tokens and $20 per million output tokens.

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