{
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  "type": "post",
  "slug": "open-weight-cyber-gap",
  "title": "Open-Weight Models Caught Frontier Cyber Capability with a Four-Month Lag",
  "description": "The UK AI Security Institute shows the lag between closed frontier systems and open-weight models shrinking in cyber capability benchmarks, changing practical risk assessment.",
  "status": "published",
  "published_at": "2026-07-21",
  "topics": [
    "cybersecurity",
    "open-models",
    "risk"
  ],
  "source_urls": [
    "https://www.aisi.gov.uk/blog/how-fast-is-autonomous-ai-cyber-capability-advancing",
    "https://www.ft.com/content/21c10336-61bc-4743-82e3-acabfc7d540d"
  ],
  "routes": {
    "html": "https://newruntime.com/posts/open-weight-cyber-gap/",
    "markdown": "https://newruntime.com/posts/open-weight-cyber-gap.md",
    "json": "https://newruntime.com/posts/open-weight-cyber-gap.json"
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  "source_format": "markdown"
}