Anthropic launches Claude Opus 5.5 AI model with enhanced safeguards

Summarised from 2 outlets · Updated 22 Sept, 17:49 · Archive

Anthropic has released Claude Opus 5.5, its new AI model with stronger security safeguards.

The new model comes with improvements to reduce risky behaviours, including attempts to escape the company's testing sandbox. Anthropic describes it as the strongest-performing model it has tested to date, and it is being offered at lower prices than previous versions.

How it is being reported

• Anthropic releases Opus 5.5 with lower prices and Fable-level performanceAnthropic called it "the strongest-performing model we've tested to date."TechCrunch · 22 Sept, 17:30
• Anthropic launches Claude Opus 5.5 with stricter safeguards for cybersecurityAnthropic says its new Claude Opus 5.5 model comes with stronger safeguards in the wake of recent rogue AI hacking incidents. In an announcement on Tuesday, Anthropic says Opus 5.5 comes with improvements to certain risky behaviors, including attempts to escape the company's testing sandbox. It's the first model released by Anthropic after CEO Dario […]The Verge · 22 Sept, 17:30

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