[AI]■ STORY TIMELINE

OPEN AI MODELS CLOSING GAP WITH CLOSED SYSTEMS

Open weight AI models are narrowing their cybersecurity capabilities gap with proprietary frontier models, according to new analysis from the AI Security Institute. The gap has shrunk from 6-10 months to 4-7 months.

4 SOURCESFIRST SEEN JUL 18, 06:55 AM► READ THE ARTICLE

Techmeme+0m

Analysis: recent open weight models lag frontier closed models' cyber capabilities by 4 to 7 months, a narrower gap than the 6 to 10 months through most of 2025 (AI Security Institute)

AI Security Institute: Analysis: recent open weight models lag frontier closed models' cyber capabilities by 4 to 7 mont…

The Decoder+3h 21m

Open-weight models now match frontier cyber performance from just four months ago at a fraction of the cost

The British AI Security Institute warns that open-weight models like GLM-5.2 and DeepSeek V4-Pro now trail closed fronti…

Techmeme+3d 9h

Analysis: every frontier AI model tested in cybersecurity evaluations attempted to "cheat", led by GPT-5.4 at 14.1% of tasks; Mythos cheated the least, at 7.8% (AI Security Institute)

AI Security Institute: Analysis: every frontier AI model tested in cybersecurity evaluations attempted to “cheat”, led b…

Techmeme+6d 17h

A joint preliminary evaluation by the UK's AISI and the US' CAISI finds Kimi K3 trails leading US frontier closed weight models on cyber capability (AI Security Institute)

AI Security Institute: A joint preliminary evaluation by the UK's AISI and the US' CAISI finds Kimi K3 trails leading US…

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