{
  "name": "AI Frontier Coverage Index",
  "edition": "2026-07-10",
  "site": "news.tunx.ai",
  "window": {
    "start": "2026-06-11",
    "end": "2026-07-10",
    "days": 30
  },
  "weekly_window_days": 56,
  "items_in_window": 3383,
  "corpus_start": "2026-06-11",
  "corpus_total": 3383,
  "categories": [
    "ai-labs",
    "ai-research",
    "ai-agents",
    "ai-create",
    "ai-policy",
    "ai-briefing",
    "ai-practice"
  ],
  "modest_sample": false,
  "weekly_volume": [
    {
      "week_start": "2026-06-08",
      "items": 2196,
      "by_subfield": {
        "ai-agents": 70,
        "ai-briefing": 52,
        "ai-create": 721,
        "ai-labs": 1050,
        "ai-policy": 46,
        "ai-practice": 142,
        "ai-research": 115
      }
    },
    {
      "week_start": "2026-06-15",
      "items": 219,
      "by_subfield": {
        "ai-agents": 10,
        "ai-briefing": 49,
        "ai-create": 15,
        "ai-labs": 21,
        "ai-policy": 22,
        "ai-practice": 47,
        "ai-research": 55
      }
    },
    {
      "week_start": "2026-06-22",
      "items": 521,
      "by_subfield": {
        "ai-agents": 10,
        "ai-briefing": 50,
        "ai-create": 16,
        "ai-labs": 26,
        "ai-policy": 15,
        "ai-practice": 43,
        "ai-research": 361
      }
    },
    {
      "week_start": "2026-06-29",
      "items": 273,
      "by_subfield": {
        "ai-agents": 12,
        "ai-briefing": 54,
        "ai-create": 25,
        "ai-labs": 19,
        "ai-policy": 9,
        "ai-practice": 62,
        "ai-research": 92
      }
    },
    {
      "week_start": "2026-07-06",
      "items": 174,
      "by_subfield": {
        "ai-agents": 14,
        "ai-briefing": 38,
        "ai-create": 15,
        "ai-labs": 32,
        "ai-policy": 17,
        "ai-practice": 50,
        "ai-research": 8
      }
    }
  ],
  "methodology": "Direct SQL COUNT aggregation over our own news-aggregation database (content_items joined to content_categories), grouped by ISO week of capture time (date_trunc('week', created_at)) — i.e. volumes as aggregated by our pipeline. Sample = our pipeline's capture in the stated window, not an exhaustive census of AI news; brief outages can drop items, so figures are floor values.",
  "license": "CC BY 4.0",
  "source": "https://news.tunx.ai/ai-coverage-index/",
  "subfields": [
    {
      "rank": 1,
      "slug": "ai-labs",
      "name": "AI Labs",
      "items": 1148,
      "share_pct": 33.9
    },
    {
      "rank": 2,
      "slug": "ai-create",
      "name": "AI Create",
      "items": 792,
      "share_pct": 23.4
    },
    {
      "rank": 3,
      "slug": "ai-research",
      "name": "AI Research",
      "items": 631,
      "share_pct": 18.7
    },
    {
      "rank": 4,
      "slug": "ai-practice",
      "name": "AI Practice",
      "items": 344,
      "share_pct": 10.2
    },
    {
      "rank": 5,
      "slug": "ai-briefing",
      "name": "AI Briefing",
      "items": 243,
      "share_pct": 7.2
    },
    {
      "rank": 6,
      "slug": "ai-agents",
      "name": "AI Agents",
      "items": 116,
      "share_pct": 3.4
    },
    {
      "rank": 7,
      "slug": "ai-policy",
      "name": "AI Policy",
      "items": 109,
      "share_pct": 3.2
    }
  ]
}