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Anthropic releases Opus 5.5, claims best safety performance to date

The company unveiled a faster, cheaper AI model it says passed its most rigorous internal safety tests.

newest coverage 1d agosummary written 1d ago3 pieces Newswires

What to know

  • Anthropic released Opus 5.5, claiming improved cost and speed alongside strongest safety test performance.
  • The release takes place amid ongoing debate about AI safety standards and development trajectories.

Anthropic AI company

How it unfolded 1 development · click the chart to see its coverage articles

Peak 2 pieces in one hour at Sep 22, 12 PM; 3 pieces over 39 hours (3 articles) Sep 22, 11 AM — 1 piece · 1 article — Newswires 1Sep 22, 12 PM — 2 pieces · 2 articles — Newswires 2Sep 22, 1 PM — quietSep 22, 2 PM — quietSep 22, 3 PM — quietSep 22, 4 PM — quietSep 22, 5 PM — quietSep 22, 6 PM — quietSep 22, 7 PM — quietSep 22, 8 PM — quietSep 22, 9 PM — quietSep 22, 10 PM — quietSep 22, 11 PM — quietYesterday, 12 AM — quietYesterday, 1 AM — quietYesterday, 2 AM — quietYesterday, 3 AM — quietYesterday, 4 AM — quietYesterday, 5 AM — quietYesterday, 6 AM — quietYesterday, 7 AM — quietYesterday, 8 AM — quietYesterday, 9 AM — quietYesterday, 10 AM — quietYesterday, 11 AM — quietYesterday, 12 PM — quietYesterday, 1 PM — quietYesterday, 2 PM — quietYesterday, 3 PM — quietYesterday, 4 PM — quietYesterday, 5 PM — quietYesterday, 6 PM — quietYesterday, 7 PM — quietYesterday, 8 PM — quietYesterday, 9 PM — quietYesterday, 10 PM — quietYesterday, 11 PM — quietToday, 12 AM — quietToday, 1 AM — quiet 1
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  1. 1

    Anthropic releases Opus 5.5 model

    Anthropic released a new AI model, Opus 5.5, which the company described as cheaper and faster than previous versions. The company stated it performed as the strongest model on its most rigorous internal safety tests to date.

    “The company released a cheaper, faster model that it said was the strongest performer on its most rigorous internal safety tests to date.”
    — New York Times · source

    1. 2 outlets first by New York Times, 1d ago · also NYT · read ↗