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GPT-5.5 matches heavily hyped Mythos Preview in new cybersecurity tests
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GPT-5.5 matches heavily hyped Mythos Preview in new cybersecurity tests


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New results suggest Mythos’ cyber threat isn’t “a breakthrough specific to one model.”

First seen on arstechnica.com

Jump to article: arstechnica.com/ai/2026/05/amid-mythos-hyped-cybersecurity-prowess-researchers-find-gpt-5-5-is-just-as-good/

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