GPT-5.5: Mythos-Like Hacking, Open to All
OpenAI's GPT-5.5 is being released freely, offering offensive security capabilities comparable to Anthropic's Mythos, which has limited access. Testing has been conducted across various benchmarks and workflows to evaluate its performance.
xbow.com
6 min
4/23/2026
GPT-5.5: Mythos-Like Hacking, Open to All
OpenAI's GPT-5.5 is being released freely, offering offensive security capabilities comparable to Anthropic's Mythos, which has limited access. Testing has been conducted across various benchmarks and workflows to evaluate its performance.
xbow.com
6 min
4/23/2026
GPT-5.5: Mythos-Like Hacking, Open to All
OpenAI's GPT-5.5 is being released freely, offering offensive security capabilities comparable to Anthropic's Mythos, which has limited access. Testing has been conducted across various benchmarks and workflows to evaluate its performance.
xbow.com
6 min
4/23/2026
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