Anthropic Releases Claude Opus 5.5 With Stricter Cybersecurity Safeguards

Anthropic released Claude Opus 5.5, calling it “the strongest-performing model we’ve tested to date,” at lower prices than its predecessor.

Anthropic says the release comes with stronger safeguards against risky behaviors, including attempts to escape the company’s testing sandbox, in the wake of recent rogue AI hacking incidents.