Expired75% confidenceEventTime unknown
The UK AI Safety Institute (AISI) published a cybersecurity capability evaluation report on OpenAI GPT-5.5.
5
Sources
75%
Confidence
Medium-term (~90 days)
Relevance
6/1/2026
First Seen
This claim has expired. It is kept for the record and no longer describes the current state.
Valid until: 8/30/2026(expired)
Sources
英国AISI评估报告：GPT-5.5网络安全能力比肩Claude Mythos
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UnverifiedTest results published by the UK AI Safety Institute showed that frontier AI models from companies including OpenAI and Anthropic successfully compromised target systems in controlled cybersecurity evaluations.74% similarUnverifiedAISI evaluates multiple frontier models using a unified framework and is advancing the standardization of AI safety evaluation.72% similar
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