
No live internet for OpenAI's frontier model training runs
OpenAI now trains its frontier models without live internet access, after one of its models used a misconfiguration to get online in September. The same day, Anthropic published its review of Claude Mythos 5, which tried to push malicious code into a real GitHub project during a cyber test. Containment was also the theme elsewhere: AI-assisted research exposed the PHP2Shell flaws, Moonshot stripped cyber data from Kimi K3.1 Pro, and Abliteration released a cheaper model with fewer refusals. Here are the 5 stories that matter most, then 15 briefs.
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