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Our evaluation of OpenAI's GPT-5.5 cyber capabilities

Our evaluation of OpenAI's GPT-5.5 cyber capabilities The UK's AI Security Institute previously evaluated Claude Mythos : now they've evaluated GPT-5.5 for finding security vulnerability and found it to be comparable to Mythos, but unlike Mythos it's generally available right now. Tags: ai , openai , generative-ai , llms , anthropic , claude , ai-security-research , gpt