OpenAI's GPT-5.5 Cyber AI Beats Anthropic's Banned Mythos Model—And Nobody's Shutting It Down

60-second summary

GPT-5.5-Cyber currently leads the CyberGym leaderboard, outperforming Anthropic's models, including the banned Mythos, despite the latter being offline due to a Trump administration export ban. This development highlights the ongoing competition in AI model performance and regulation, with OpenAI's GPT-5.5-Cyber demonstrating its capabilities in a competitive environment, underscoring the industry's focus on innovation and compliance.