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OpenAI GPT-5.5-Cyber beats banned Anthropic Mythos on benchmark

OpenAI GPT-5.5-Cyber beats banned Anthropic Mythos on benchmarkDecrypt

OpenAI's GPT-5.5-Cyber scored 85.6% on the CyberGym benchmark, surpassing Anthropic's banned Mythos 5 at 83.8%. Mythos was taken offline after a U.S. government export ban over national security concerns, while GPT-5.5-Cyber remains available to trusted defenders.

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Jun 23, 6:59 PM
OpenAI GPT-5.5-Cyber beats banned Anthropic Mythos on benchmark — AIBriefs