Import AI 465: Open vs closed gaps; Kimi K3; Demis’ big policy plan

Welcome to Import AI, a newsletter about AI research. Import AI runs on arXiv, cappuccinos, and feedback from readers. If you’d like to support this, please subscribe. UK government: Gap between open and closed weight models on cyber is shrinking:…The cyber-eschaton cometh…The UK government’s AI Security Institute (AISI) has analyzed the delta in cybersecurity capabilities between powerful proprietary models and open weight models. The results show that this year, the gap has shrunk. “This is our first public analysis of how far leading open weight models trail the closed cyber frontier,” AISI writes. “Recent open models GLM-5.2 and DeepSeek V4-Pro perform similarly to frontier closed models released 4 to 7 months before them – a narrower gap than the 6 to 10 months we measured through most of 2025.” Specific details: On a set of 70 evals for specific, narrow cyber capabilities, GLM-5.2 is closest to Claude Opus 4.6, which was released 4.3 months earlier, while DeepSeek-V4-Pro sits somewhere between Claude Opus 4.5 and GPT-5 (released in November and August 2025, respectively). “AISI intends to test Kimi K3 on this same basis, once its weights are publicly released,” AISI writes. The gap lengthens a bit for long-horizon cyber ranges, which…